feat: add support for running CoreDNS as a Windows service (#7962)

* feat: add support for running CoreDNS as a Windows service

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

* Use non-deprecated service check function.

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

* refactor: remove deprecated build tags and clean up imports in service files

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

* ci: add Windows test workflow and fix log field access in service_windows.go

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

* test: implement cross-platform file permission restriction for Windows compatibility in run_test.go

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

* refactor: remove Windows-specific icacls test logic and restrict unreadable file test to non-Windows platforms

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

* docs: add documentation for -windows-service flag in man page

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

---------

Signed-off-by: John-Michael Mulesa <jmulesa@gmail.com>

.github/workflows/go.test.yml

@@ -28,6 +28,31 @@ jobs:
           ( cd core; go test -race  ./... )
           ( cd coremain; go test -race ./... )
 
+  test-windows:
+    name: Test Windows
+    runs-on: windows-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Install Go
+        uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417  # v6.3.0
+        with:
+          go-version-file: .go-version
+        id: go
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Test
+        shell: bash
+        run: |
+          ( cd request; go test -race ./... )
+          ( cd core; go test -race  ./... )
+          ( cd coremain; go test -race ./... )
+
   test-plugins:
     name: Test Plugins
     runs-on: ubuntu-latest