manifests/fedora-vars: update to fedora 38

What? I can just edit variables in one files and all(*) manifests get updated
content? That's impressive.

(*) We will be able to do all once we migrate all to the new format. For now,
    the usual disclaimer applies:

    This change is applied only to manifests based on fedora-build-v2 for now.

test/data/manifests/fedora-vars.ipp.yaml

@@ -2,11 +2,11 @@ version: '2'
 
 mpp-vars:
   arch: x86_64
-  release: 36
+  release: 38
   releasever: f$release
   module_platform_id: platform:$releasever
-  snapshot: '20220617'
-  updates: '20220801'
+  snapshot: '20230413'
+  updates: '20230724'
   repos:
     - id: default
       baseurl: https://rpmrepo.osbuild.org/v2/mirror/public/$releasever/$releasever-$arch-fedora-$snapshot/
@@ -17,4 +17,4 @@ mpp-vars:
     - id: updates-modular
       baseurl: https://rpmrepo.osbuild.org/v2/mirror/public/$releasever/$releasever-$arch-updates-released-modular-$updates/
   gpgkeys:
-    - "-----BEGIN PGP PUBLIC KEY BLOCK-----\n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\n=QWRO\n-----END PGP PUBLIC KEY BLOCK-----\n"
+    - "-----BEGIN PGP PUBLIC KEY BLOCK-----\n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\nzquq5jBVAnsNIhs7g47GWKyDUJM=\n=aCLl\n-----END PGP PUBLIC KEY BLOCK-----\n"