fix(release): handle missing dnf in aarch64 manylinux container

The aarch64 manylinux_2_28 container does not expose dnf in PATH,
causing before-script to exit 127. Fall through dnf→yum→apt-get so
protoc installs regardless of which package manager is available.

Closes #52

Author: polaz

.github/workflows/release.yml

@@ -142,7 +142,9 @@ jobs:
           manylinux: ${{ matrix.manylinux || 'auto' }}
           target: ${{ matrix.target }}
           before-script-linux: |
-            dnf install -y protobuf-compiler
+            command -v dnf  && dnf  install -y   protobuf-compiler ||
+            command -v yum  && yum  install -y   protobuf-compiler ||
+            command -v apt-get && apt-get install -y -q protobuf-compiler
 
       - name: Upload wheels
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4