Configure Actions lockfile test filter

Use the extractor environment to include actions.lock files instead of registering .lock as an Actions workflow extension.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 4994bb27-c5ca-47e9-b082-cfc1ca244e86

Author: hvitved

actions/extractor/codeql-extractor.yml

@@ -3,6 +3,8 @@ display_name: "GitHub Actions"
 version: 0.0.1
 column_kind: "utf16"
 unicode_newlines: true
+extra_env_vars:
+  LGTM_INDEX_FILTERS: "include:**/actions.lock"
 build_modes:
   - none
 default_queries:
@@ -16,7 +18,6 @@ file_types:
   - name: workflow
     display_name: GitHub Actions workflow files
     extensions:
-      - .lock
       - .yml
       - .yaml
 forwarded_extractor_name: javascript