Merge branch 'ci/format' into 'main'

Skip format job during release runs

See merge request veilid/veilid!314

.gitlab-ci.yml

@@ -20,13 +20,10 @@ format:
   script:
     - cargo fmt --all -- --check --verbose
 
-  cache:
-    key: fmt-cache
-    paths:
-      - ~/.cargo/bin/
-      - ~/.cargo/git/db/
-      - ~/.cargo/registry/cache/
-      - ~/.cargo/registry/index/
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: never
+    - when: always
 
 # base earthly setup for jobs
 .base: