ci(build): add project directory as safe dir

The standard checkout workflow should do this, but it appears to use a
throwaway home directory and does not attempt to set it in a permanent
way for the rest of the workflow.

Signed-off-by: Randolph Sapp <rs@ti.com>

.github/workflows/build.yml

@@ -56,6 +56,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Add directory to safe dir overrides
+        run: |
+          git config --global --add safe.directory "$PWD"
+
       - name: Build ${{ matrix.device }}
         run: |
           make DEVFAMILY=${{ matrix.device }} OS=${{ matrix.os }} \