fix(ci): use direct GOPROXY to avoid public proxy caching

Set GOPROXY to 'direct' for all vault dependency update steps to bypass the public Go proxy. This ensures private dependencies are fetched directly from source and prevents caching issues with private modules.

.gitea/workflows/build.yml

@@ -335,6 +335,7 @@ jobs:
         if: matrix.goos != 'windows'
         env:
           GOPRIVATE: ""
+          GOPROXY: direct
         run: |
           set -x
           VAULT_VERSION="${{ steps.vault.outputs.version }}"
@@ -353,6 +354,7 @@ jobs:
         shell: pwsh
         env:
           GOPRIVATE: ""
+          GOPROXY: direct
         run: |
           $vaultVersion = "${{ steps.vault-win.outputs.version }}"
           Write-Host "Building with vault $vaultVersion"
@@ -567,7 +569,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/v') && needs.lint.result == 'success' && needs.create-release.result == 'success'
     env:
       CGO_ENABLED: 1
-      GOPROXY: https://proxy.golang.org,direct
+      GOPROXY: direct
       GOPRIVATE: git.marketally.com
       GONOSUMDB: git.marketally.com
     steps:
@@ -603,6 +605,7 @@ jobs:
       - name: Update vault dependency
         env:
           GOPRIVATE: ""
+          GOPROXY: direct
         run: |
           set -x
           VAULT_VERSION="${{ steps.vault.outputs.version }}"