go.mod: update github.com/containers/image/v5

Version 5.22 introduced a new option to /etc/containers/policy.json called
keyPaths, see

https://github.com/containers/image/pull/1609

EL9 immediately took advantage of this new feature and started using it, see
04645c4a84

This quickly became an issue in our code: The go library (containers/image)
parses the configuration file very strictly and refuses to create a client
when policy.json with an unknown key is present on the filesystem. As we
used 5.21.1 that doesn't know the new key, our unit tests started to
failing when containers-common was present.

Reproducer:
podman run --pull=always --rm -it centos:stream9
dnf install -y dnf-plugins-core
dnf config-manager --set-enabled crb
dnf install -y gpgme-devel libassuan-devel krb5-devel golang git-core
git clone https://github.com/osbuild/osbuild-composer
cd osbuild-composer

# install the new containers-common and run the test
dnf install -y https://kojihub.stream.centos.org/kojifiles/packages/containers-common/1/44.el9/x86_64/containers-common-1-44.el9.x86_64.rpm
go test -count 1 ./...

# this returns:
--- FAIL: TestClientResolve (0.00s)
    client_test.go:31:
        	Error Trace:	client_test.go:31
        	Error:      	Received unexpected error:
        	            	Unknown key "keyPaths"
        	            	invalid policy in "/etc/containers/policy.json"
        	            	github.com/containers/image/v5/signature.NewPolicyFromFile
        	            		/osbuild-composer/vendor/github.com/containers/image/v5/signature/policy_config.go:88
        	            	github.com/osbuild/osbuild-composer/internal/container.NewClient
        	            		/osbuild-composer/internal/container/client.go:123
        	            	github.com/osbuild/osbuild-composer/internal/container_test.TestClientResolve
        	            		/osbuild-composer/internal/container/client_test.go:29
        	            	testing.tRunner
        	            		/usr/lib/golang/src/testing/testing.go:1439
        	            	runtime.goexit
        	            		/usr/lib/golang/src/runtime/asm_amd64.s:1571
        	Test:       	TestClientResolve
    client_test.go:32:
        	Error Trace:	client_test.go:32
        	Error:      	Expected value not to be nil.
        	Test:       	TestClientResolve

 When run with an older containers-common, it succeeds:
 dnf install -y https://kojihub.stream.centos.org/kojifiles/packages/containers-common/1/40.el9/x86_64/containers-common-1-40.el9.x86_64.rpm
 go test -count 1 ./...
 PASS

To sum it up, I had to upgrade github.com/containers/image/v5 to v5.22.0.
Unfortunately, this wasn't so simple, see

go get github.com/containers/image/v5@latest
go: github.com/containers/image/v5@v5.22.0 requires
	github.com/letsencrypt/boulder@v0.0.0-20220331220046-b23ab962616e requires
	github.com/honeycombio/beeline-go@v1.1.1 requires
	github.com/gobuffalo/pop/v5@v5.3.1 requires
	github.com/mattn/go-sqlite3@v2.0.3+incompatible: reading github.com/mattn/go-sqlite3/go.mod at revision v2.0.3: unknown revision v2.0.3

It turns out that github.com/mattn/go-sqlite3@v2.0.3+incompatible has been
recently retracted https://github.com/mattn/go-sqlite3/pull/998 and this
broke a ton of packages depending on it. I was able to fix it by adding

exclude github.com/mattn/go-sqlite3 v2.0.3+incompatible

to our go.mod, see
https://github.com/mattn/go-sqlite3/issues/975#issuecomment-955661657

After adding it,
go get github.com/containers/image/v5@latest
succeeded and tools/prepare-source.sh took care of the rest.

Signed-off-by: Ondřej Budai <ondrej@budai.cz>

vendor/github.com/letsencrypt/boulder/goodkey/weak.go

@@ -0,0 +1,66 @@
+package goodkey
+
+// This file defines a basic method for testing if a given RSA public key is on one of
+// the Debian weak key lists and is therefore considered compromised. Instead of
+// directly loading the hash suffixes from the individual lists we flatten them all
+// into a single JSON list using cmd/weak-key-flatten for ease of use.
+
+import (
+	"crypto/rsa"
+	"crypto/sha1"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+)
+
+type truncatedHash [10]byte
+
+type WeakRSAKeys struct {
+	suffixes map[truncatedHash]struct{}
+}
+
+func LoadWeakRSASuffixes(path string) (*WeakRSAKeys, error) {
+	f, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	var suffixList []string
+	err = json.Unmarshal(f, &suffixList)
+	if err != nil {
+		return nil, err
+	}
+
+	wk := &WeakRSAKeys{suffixes: make(map[truncatedHash]struct{})}
+	for _, suffix := range suffixList {
+		err := wk.addSuffix(suffix)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return wk, nil
+}
+
+func (wk *WeakRSAKeys) addSuffix(str string) error {
+	var suffix truncatedHash
+	decoded, err := hex.DecodeString(str)
+	if err != nil {
+		return err
+	}
+	if len(decoded) != 10 {
+		return fmt.Errorf("unexpected suffix length of %d", len(decoded))
+	}
+	copy(suffix[:], decoded)
+	wk.suffixes[suffix] = struct{}{}
+	return nil
+}
+
+func (wk *WeakRSAKeys) Known(key *rsa.PublicKey) bool {
+	// Hash input is in the format "Modulus={upper-case hex of modulus}\n"
+	hash := sha1.Sum([]byte(fmt.Sprintf("Modulus=%X\n", key.N.Bytes())))
+	var suffix truncatedHash
+	copy(suffix[:], hash[10:])
+	_, present := wk.suffixes[suffix]
+	return present
+}