Update and pin all actions versions (#564)

Signed-off-by: Dmytro Bondar <git@bonddim.dev>

.github/workflows/chart.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event_name == 'pull_request' }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           fetch-depth: 0
 
@@ -35,16 +35,16 @@ jobs:
       # ct lint requires Python 3.x to run following packages:
       #  - yamale (https://github.com/23andMe/Yamale)
       #  - yamllint (https://github.com/adrienverge/yamllint)
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:
           python-version: '3.x'
 
-      - uses: helm/chart-testing-action@v2
+      - uses: helm/chart-testing-action@6ec842c01de15ebb84c8627d2744a0c2f2755c9f # v2.8.0
 
       - name: Run chart-testing (lint)
         run: ct lint --config ct.yaml
 
-      - uses: nolar/setup-k3d-k3s@v1
+      - uses: nolar/setup-k3d-k3s@293b8e5822a20bc0d5bcdd4826f1a665e72aba96 # v1.0.9
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
 
@@ -60,9 +60,9 @@ jobs:
     permissions:
       packages: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
-      - uses: docker/login-action@v3
+      - uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}