fix: action reference

Signed-off-by: Anitha Natarajan <[email protected]>

Author: anithapriyanatarajan

.github/workflows/labels.yaml

@@ -15,7 +15,7 @@ jobs:
     name: Check kind labels
     runs-on: ubuntu-latest
     steps:
-      - uses: docker://agilepathway/pull-request-label-checker:v1.6.65@sha256:65e57fd98ba3ab6ca4fcbc5a0aef288dd984ee4ab988f124d83424d19b55b801
+      - uses: docker://agilepathway/pull-request-label-checker@sha256:14f5f3dfda922496d07d53494e2d2b42885165f90677a1c03d600059b7706a61 # :v1.6.65
         with:
           prefix_mode: true
           one_of: "kind/"