fix: arch package version (#1628)

docker/archlinux.dockerfile

@@ -71,6 +71,8 @@ cmake \
   -DSUNSHINE_CONFIGURE_PKGBUILD=ON \
   -DSUNSHINE_SUB_VERSION="${sub_version}" \
   -DGITHUB_CLONE_URL="${CLONE_URL}" \
+  -DGITHUB_BRANCH=${BRANCH} \
+  -DGITHUB_BUILD_VERSION=${BUILD_VERSION} \
   -DGITHUB_COMMIT="${COMMIT}" \
   -DSUNSHINE_CONFIGURE_ONLY=ON \
   /build/sunshine

packaging/linux/Arch/PKGBUILD

@@ -51,6 +51,10 @@ build() {
     npm install
     popd
 
+    export BRANCH=@GITHUB_BRANCH@
+    export BUILD_VERSION=@GITHUB_BUILD_VERSION@
+    export COMMIT=@GITHUB_COMMIT@
+
     export CFLAGS="${CFLAGS/-Werror=format-security/}"
     export CXXFLAGS="${CXXFLAGS/-Werror=format-security/}"