Merge branch 'limit-ci-testing' into 'main'

Limit CI testing to relevant changes

See merge request veilid/veilid!339

.gitlab-ci.yml

@@ -92,6 +92,9 @@ test_build:
     - if: $CI_PIPELINE_SOURCE == "merge_request_event"
     - if: $CI_PIPELINE_SOURCE == "push"
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - changes:
+        - veilid-*/**
+        - '**/*[Cc]argo*'
 
 semgrep:
   # A Docker image with Semgrep installed.