github-ci: misc fixes

- Fix git permissions after checkout
- Don't use terminal in Docker if running in GitHub CI

.github/workflows/builds.yml

@@ -18,6 +18,8 @@ jobs:
     container: rust:latest
     steps:
       - uses: actions/checkout@v4
+      # Needed to we can get the build revision, required by build.rs
+      - run: git config --global --add safe.directory /__w/evebox/evebox
       - run: cargo test --all
 
   build-dist:

build-dist.sh

@@ -44,7 +44,8 @@ cross_run() {
     fi
     dockerfile="./docker/builder/Dockerfile.cross"
     tag=${BUILDER_TAG:-"evebox/builder:cross"}
-    if test -t; then
+    env
+    if [ -z "${GITHUB_REPOSITORY}" && test -t ]; then
         it="-it"
     else
         it=""