[build] entrypoint script fixes

Authored by: bashonly

.github/workflows/build.yml

@@ -154,7 +154,6 @@ jobs:
           docker compose up --build linux_${{ matrix.platform }}
           sudo chown "${USER}:docker" ~/build/${{ matrix.exe }}
           chmod +x ~/build/${{ matrix.exe }}
-          # docker compose can fail with exit code 0, so we need to check the exe here
           ~/build/${{ matrix.exe }} --version
       - name: Verify --update-to
         if: vars.UPDATE_TO_VERIFICATION

bundle/docker/linux/entrypoint.sh

@@ -1,11 +1,11 @@
 #!/bin/bash
-set -e
+set -exuo pipefail
 
-python3.13 -m venv ~/yt-dlp-build-venv
+python3 -m venv ~/yt-dlp-build-venv
 source ~/yt-dlp-build-venv/bin/activate
-python3.13 -m devscripts.install_deps -o --include build
-python3.13 -m devscripts.install_deps --include secretstorage --include curl-cffi --include pyinstaller
-python3.13 -m devscripts.make_lazy_extractors
-python3.13 devscripts/update-version.py -c "${channel}" -r "${origin}" "${version}"
-python3.13 -m bundle.pyinstaller
+python3 -m devscripts.install_deps -o --include build
+python3 -m devscripts.install_deps --include secretstorage --include curl-cffi --include pyinstaller
+python3 -m devscripts.make_lazy_extractors
+python3 devscripts/update-version.py -c "${channel}" -r "${origin}" "${version}"
+python3 -m bundle.pyinstaller
 mv dist/* /build/