Integration, remove retry

The retry has no real function as it will just fail on
"container exists" on the old tests and the new test will
just try forever before it eventually fails.

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

.github/workflows/test-integration-oidc.yml

@@ -33,8 +33,4 @@ jobs:
       - name: Run OIDC integration tests
         if: steps.changed-files.outputs.any_changed == 'true'
         uses: nick-fields/retry@v2
-        with:
-          timeout_minutes: 240
-          max_attempts: 5
-          retry_on: error
-          command: nix develop --command -- make test_integration_oidc
+        run: nix develop --command -- make test_integration_oidc