use my fork until we can get changes upstream

use my fork for chart-testing until a change can be merged upstream to
not use the `--reuse-values` flag

helm/chart-testing#525

.github/workflows/pull_requests.yaml

@@ -31,10 +31,12 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@v3
         with:
-          version: v3.10.2
+          version: v3.11.1
 
       - name: Set up chart-testing
-        uses: helm/[email protected]
+        uses: joejulian/[email protected]
+        with:
+          version: v3.7.1-1
 
       - name: Run chart-testing (lint)
         run: ct lint --config .github/ct.yaml
@@ -52,7 +54,9 @@ jobs:
           version: v3.11.1
 
       - name: Set up chart-testing
-        uses: helm/[email protected]
+        uses: joejulian/[email protected]
+        with:
+          version: v3.7.1-1
 
       # we're excluding console from the install test until we have a way to test it with Redpanda
       - name: Run chart-testing (list-changed)