fix: add GOPRIVATE and git auth for private handler-base module

- Set GOPRIVATE=git.daviestechlabs.io to bypass public Go module proxy
- Configure git URL insteadOf with DISPATCH_TOKEN for private repo access

.gitea/workflows/build-push.yaml

@@ -8,6 +8,7 @@ on:
 
 env:
   NTFY_URL: http://ntfy.observability.svc.cluster.local:80
+  GOPRIVATE: git.daviestechlabs.io
   REGISTRY: gitea-http.gitea.svc.cluster.local:3000/daviestechlabs
   REGISTRY_HOST: gitea-http.gitea.svc.cluster.local:3000
   IMAGE_NAME: stt-module
@@ -26,6 +27,9 @@ jobs:
           go-version-file: go.mod
           cache: true
 
+      - name: Configure private modules
+        run: git config --global url."https://gitea-actions:${{ secrets.DISPATCH_TOKEN }}@git.daviestechlabs.io/".insteadOf "https://git.daviestechlabs.io/"
+
       - name: Run go vet
         run: go vet ./...
 
@@ -50,6 +54,9 @@ jobs:
           go-version-file: go.mod
           cache: true
 
+      - name: Configure private modules
+        run: git config --global url."https://gitea-actions:${{ secrets.DISPATCH_TOKEN }}@git.daviestechlabs.io/".insteadOf "https://git.daviestechlabs.io/"
+
       - name: Verify dependencies
         run: go mod verify