feat: improve go caching in CI pipeline

See actions/setup-go#515

Author: bertschneider

.github/workflows/ci.yml

@@ -19,6 +19,13 @@ defaults:
   run:
     shell: pwsh
 
+env:
+  # Fix slow Go compile and cache restore
+  # See https://github.com/actions/setup-go/pull/515
+  GOCACHE: D:\gocache
+  GOMODCACHE: D:\gomodcache
+  GOTMPDIR: D:\gotmp
+
 jobs:
   audit:
     name: Audit
@@ -33,6 +40,10 @@ jobs:
         with:
           fetch-depth: 0
 
+      # Go requires gotmp to be present
+      - run: mkdir D:\gotmp
+        shell: pwsh
+
       - uses: actions/setup-go@v5
         with:
           go-version: "1.24"
@@ -83,6 +94,10 @@ jobs:
         with:
           fetch-depth: 0
 
+      # Go requires gotmp to be present
+      - run: mkdir D:\gotmp
+        shell: pwsh
+
       - name: Set up Go
         uses: actions/setup-go@v5
         with: