[Engine-1.21] Secrets-encryption rotation (#4656)

* Backport secrets encrypt rotation
* Backport integration fixes for custom etcd args

Signed-off-by: Derek Nola <derek.nola@suse.com>

.github/workflows/integration.yaml

@@ -45,15 +45,8 @@ jobs:
     - name: Run Integration Tests
       run: | 
         chmod +x ./dist/artifacts/k3s
-        go test -coverpkg=./... -coverprofile=coverage.out ./pkg/... -run Integration
-        go tool cover -func coverage.out
+        go test ./pkg/... ./tests/integration/... -run Integration
     - name: On Failure, Launch Debug Session
       if: ${{ failure() }}
       uses: mxschmitt/action-tmate@v3
       timeout-minutes: 5
-    - name: Upload Results To Codecov
-      uses: codecov/codecov-action@v1
-      with:
-        files: ./coverage.out
-        flags: inttests # optional
-        verbose: true # optional (default = false)