Migrating to use GitHub environment files for GitHub Actions.

See https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/ for details.

.github/workflows/build.yml

@@ -68,10 +68,10 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
 
-          echo "::set-output name=version::$VERSION"
-          echo "::set-output name=name::$NAME"
-          echo "::set-output name=changelog::$CHANGELOG"
-          echo "::set-output name=pluginVerifierHomeDir::~/.pluginVerifier"
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "name=$NAME" >> $GITHUB_OUTPUT
+          echo "changelog=$CHANGELOG" >> $GITHUB_OUTPUT
+          echo "pluginVerifierHomeDir=~/.pluginVerifier" >> $GITHUB_OUTPUT
 
           ./gradlew listProductsReleases # prepare list of IDEs for Plugin Verifier
 
@@ -125,7 +125,7 @@ jobs:
           FILENAME=`ls *.zip`
           unzip "$FILENAME" -d content
 
-          echo "::set-output name=filename::${FILENAME:0:-4}"
+          echo "filename=${FILENAME:0:-4}" >> $GITHUB_OUTPUT
 
       # Store already-built plugin as an artifact for downloading
       - name: Upload artifact

.github/workflows/release.yml

@@ -44,7 +44,7 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
 
-          echo "::set-output name=changelog::$CHANGELOG"
+          echo "changelog=$CHANGELOG" >> $GITHUB_OUTPUT
 
       # Update Unreleased section with the current release note
       - name: Patch Changelog