Removes deprecated set-output usage

For more information see
https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

This change bumps a bunch of the internal actions packages. Note that
the only required version change is `actions/core` to 1.10.0. The others
are not required, but seem like a reasonable idea.

It also changes all of the workflows that use `set-output`.

.github/workflows/codeql.yml

@@ -61,7 +61,7 @@ jobs:
 
         # Output a JSON-encoded list with the distinct versions to test against.
         echo "Suggested matrix config for analysis job: $VERSIONS_JSON"
-        echo "::set-output name=versions::${VERSIONS_JSON}"
+        echo "versions=${VERSIONS_JSON}" >> $GITHUB_OUTPUT
 
   build:
     needs: [check-codeql-versions]

.github/workflows/post-release-mergeback.yml

@@ -47,11 +47,10 @@ jobs:
         id: getVersion
         run: |
           VERSION="v$(jq '.version' -r 'package.json')"
-          echo "::set-output name=version::${VERSION}"
+          echo "version=${VERSION}" >> $GITHUB_OUTPUT
           short_sha="${GITHUB_SHA:0:8}"
           NEW_BRANCH="mergeback/${VERSION}-to-${BASE_BRANCH}-${short_sha}"
-          echo "::set-output name=newBranch::${NEW_BRANCH}"
-
+          echo "newBranch=${NEW_BRANCH}" >> $GITHUB_OUTPUT
 
       - name: Dump branches
         env:
@@ -77,7 +76,7 @@ jobs:
           exists="$?"
           if [ "${exists}" -eq 0 ]; then
             echo "Tag ${VERSION} exists. Not going to re-release."
-            echo "::set-output name=exists::true"
+            echo "exists=true" >> $GITHUB_OUTPUT
           else
             echo "Tag ${VERSION} does not exist yet."
           fi