Merge branch 'gha-set-output'

Author: TimWolla

.github/workflows/image.yml

@@ -21,8 +21,8 @@ jobs:
         IMAGE=adminer:${VARIANT/\//-}-$(date +%s)
         docker build "$VARIANT" --tag "$IMAGE" |sed 's/^Step/::endgroup::\n::group::Step/'
         printf "::endgroup::\n"
-        printf "::set-output name=%s::%s\n" "image" "$IMAGE"
-        printf "::set-output name=%s::%s\n" "version" "$(awk '/^ENV\s+ADMINER_VERSION/{print $3}' "$VARIANT/Dockerfile")"
+        printf "image=%s\n" "$IMAGE" >> $GITHUB_OUTPUT
+        printf "version=%s\n" "$(awk '/^ENV\s+ADMINER_VERSION/{print $3}' "$VARIANT/Dockerfile")" >> $GITHUB_OUTPUT
       env:
         VARIANT: ${{ matrix.variant }}
     - name: Smoketest