makefile, ci: run go build ./... in CI

.github/workflows/miqt.yml

@@ -21,10 +21,26 @@ jobs:
         key: linux64-clang-cache
         
     - name: Rebuild binding source
-      run: make
+      run: make genbindings
     
     - name: Assert no changes
       run: git update-index --really-refresh && git diff-index HEAD
+      
+  miqt_buildall:
+    runs-on: ubuntu-24.04
+    
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Cache GOCACHE
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/go-build
+        key: linux64-buildall-gocache
+    
+    - name: Rebuild all libraries and examples
+      run: make build-all
     
   miqt_linux64_qt5:
     runs-on: ubuntu-24.04

Makefile

@@ -31,3 +31,6 @@ clean:
 genbindings: $(BUILDSTAMPS)
 	$(DOCKEREXEC) 'cd cmd/genbindings && go build && ./genbindings'
 
+.PHONY: build-all
+build-all: $(BUILDSTAMPS)
+	$(DOCKEREXEC) 'go build ./...'