github workflow: on build on other archs restore distro bullseye

restored other arch container to bullseye as workaround for build error:
/home/runner/work/blksnap/blksnap/lib/blksnap/TrackerCtl.cpp: In
member function 'void blksnap::CTrackerCtl::ReadCbtMap(unsigned int,
unsigned int, uint8_t*)':
/home/runner/work/blksnap/blksnap/lib/blksnap/TrackerCtl.cpp:93:5:
sorry, unimplemented: non-trivial designated initializers not supported
       };
       ^

probably related to this:
https://stackoverflow.com/questions/31215971/non-trivial-designated-initializers-not-supported
but I not checked more for now

.github/workflows/build-other-archs.yml

@@ -40,6 +40,7 @@ jobs:
         id: build
         with:
           arch: ${{ matrix.arch }}
+          distro: bullseye
 
           # Not required, but speeds up builds
           githubToken: ${{ github.token }}