fix: generated (YAML) configuration syntax error when using JSON input config

Due to a recent change in YQ (v4.44.2): the default output format (when not explicit) is the same as input format.

templates/gitlab-ci-semrel.yml

@@ -686,7 +686,7 @@ stages:
     releaserc_file="${semrelConfigFile}"
     rm -f "package.json"
 
-    yq eval -P 'with_entries(select((.key | . != "plugins") and (.key | . != "verifyConditions")))' "${releaserc_file}" > "${releaserc_file}.new"
+    yq eval -oyaml -P 'with_entries(select((.key | . != "plugins") and (.key | . != "verifyConditions")))' "${releaserc_file}" > "${releaserc_file}.new"
 
     # Generating the hook scripts that will generate the dotenv file
     # The dotenv file is generated in $TMPDIR so it will survive the git reset