chore(deps): update ghcr.io/cloudnative-pg/postgresql docker tag to v14.18-22 (#134)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yaml

@@ -28,7 +28,7 @@ jobs:
             cnpg_version: 15.13-22
           - postgres_version: "14"
             # renovate datasource=docker depName=ghcr.io/cloudnative-pg/postgresql
-            cnpg_version: 14.18-21
+            cnpg_version: 14.18-22
     steps:
       - name: Checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2