fix(DAK-5433): clear stale deb/rpm artifacts + enforce brew install tests

.github/workflows/install-test.yml

@@ -10,19 +10,16 @@ on:
     branches: [main]
 
 jobs:
-  # NOTE: Homebrew tap (dakera-ai/homebrew-tap) is private.
-  # brew install requires a public tap. These jobs run with continue-on-error until
-  # the tap is made public (requires founder approval per org security policy).
   test-brew-dk:
     name: Homebrew — dk
     runs-on: macos-latest
-    continue-on-error: true
     steps:
       - name: Install dk via Homebrew
         run: brew install dakera-ai/tap/dk
       - name: Verify dk version
         run: dk --version
 
+
   test-apt:
     name: APT — dk
     runs-on: ubuntu-22.04

.github/workflows/publish-linux-packages.yml

@@ -27,7 +27,9 @@ jobs:
       - name: Install cargo-deb
         run: cargo install cargo-deb --locked
       - name: Build .deb package
-        run: cargo deb
+        run: |
+          rm -rf target/debian/
+          cargo deb
       - name: Upload deb artifact
         uses: actions/upload-artifact@v4
         with:
@@ -52,7 +54,9 @@ jobs:
       - name: Build release binary
         run: cargo build --release
       - name: Build .rpm package
-        run: cargo generate-rpm
+        run: |
+          rm -rf target/generate-rpm/
+          cargo generate-rpm
       - name: Upload rpm artifact
         uses: actions/upload-artifact@v4
         with: