ci: use ubuntu-latest for gh workflows

Signed-off-by: Anish Ramasekar <[email protected]>

Author: aramase

.github/workflows/chart.yaml

@@ -16,7 +16,7 @@ permissions:
 
 jobs:
   deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Harden Runner
         uses: step-security/harden-runner@c95a14d0e5bab51a9f56296a4eb0e416910cd350 # v2.10.3

.github/workflows/create-release.yaml

@@ -9,7 +9,7 @@ permissions:
 
 jobs:
   create-release:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Harden Runner
         uses: step-security/harden-runner@c95a14d0e5bab51a9f56296a4eb0e416910cd350 # v2.10.3