build: use a re-usable, single, workflow for running CI

As a way to keep updates to the CI pipelines more straightforward, we
can extract this out to a shared, versioned (and updated by Renovate)
Action.

As we support a minimum of Go 1.22, we can make sure that we're running
only from Go 1.22 onwards.

Author: jamietanna

.github/workflows/ci.yml

@@ -1,27 +1,12 @@
-name: Build project
-on: [ push, pull_request ]
+name: CI
+on:
+  push: {}
+  pull_request: {}
+  workflow_dispatch: {}
+permissions:
+  contents: read
 jobs:
   build:
-    name: Build
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      # perform matrix testing to give us an earlier insight into issues with different versions of supported major versions of Go
-      matrix:
-        version:
-        # versions of Go that this module can still be built with (and therefore are "supported" by this project)
-        - "1.22"
-        # actively supported versions of Go
-        - "1.23"
-        - "1.24"
-    steps:
-      - name: Check out source code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-
-      - name: Set up Go
-        uses: actions/setup-go@0aaccfd150d50ccaeb58ebd88d36e91967a5f35b # v5
-        with:
-          go-version: ${{ matrix.version }}
-
-      - name: Test
-        run: make test
+    uses: oapi-codegen/actions/.github/workflows/ci.yml@a4ae25b391bf6689acc6983e1e801237d8d515fc # v0.3.0
+    with:
+      excluding_versions: '["1.20", "1.21"]'