Merge pull request #1271 from lsst-it/IT-3057/pin-helm-version

(gha) pin helm version to 3.19.2

Author: jhoblitt

.github/workflows/chart-lint.yaml

@@ -11,6 +11,8 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - uses: azure/setup-helm@v4.3.1
+        with:
+          version: 3.19.2
 
       - name: Set up Go
         uses: actions/setup-go@v6