MM-53090: Do not run PG binary tests on master (#23688)

https://mattermost.atlassian.net/browse/MM-53090
```release-note
NONE
```

.github/workflows/server-ci-template.yml

@@ -71,7 +71,6 @@ jobs:
         run: make setup-go-work
       - name: Run golangci
         run: make golangci-lint
-
   check-gen-serialized:
     name: Check serialization methods for hot structs
     runs-on: ubuntu-22.04
@@ -226,6 +225,7 @@ jobs:
           make mmctl-docs
           if [[ -n $(git status --porcelain) ]]; then echo "Please update the mmctl docs using make mmctl-docs"; exit 1; fi
   test-postgres-binary:
+    if: github.ref_name != 'master' # Do not run postgres binary tests on master
     name: Postgres with binary parameters
     needs: check-mattermost-vet
     uses: ./.github/workflows/server-test-template.yml