chore(deps): update oapi-codegen/actions action to v0.6.0

Author: renovate[bot]

.github/workflows/ci.yml

@@ -7,4 +7,4 @@ permissions:
   contents: read
 jobs:
   build:
-    uses: oapi-codegen/actions/.github/workflows/ci.yml@b9f2c274c1c631e648931dbbcc1942c2b2027837 # v0.4.0
+    uses: oapi-codegen/actions/.github/workflows/ci.yml@6cf35d4f044f2663dae54547ff6d426e565beb48 # v0.6.0