Pin CI steps that use bashisms to bash

.gitea/workflows/ci.yml

@@ -176,6 +176,7 @@ jobs:
 
       - name: Upload artifacts to MinIO
         if: always()
+        shell: bash
         env:
           MINIO_ACCESS_KEY: ${{ secrets.MINIO_ACCESS_KEY }}
           MC_HOST_minio: https://${{ secrets.MINIO_ACCESS_KEY }}:${{ secrets.MINIO_SECRET_KEY }}@minio.weaselab.dev
@@ -241,6 +242,7 @@ jobs:
           ctest --no-compress-output --test-output-size-passed 100000 --test-output-size-failed 100000 -T Test -j "$(nproc)" --timeout 90 > /dev/null
 
       - name: Coverage report
+        shell: bash
         run: |
           gcov_args=(-f ConflictSet.cpp -f LongestCommonPrefix.h -f Metrics.h
                      --gcov-executable "llvm-cov gcov" --exclude-noncode-lines)

Dockerfile

@@ -8,6 +8,7 @@ RUN chmod -R 777 /tmp
 RUN apt-get update
 RUN apt-get upgrade -y
 RUN TZ=America/Los_Angeles DEBIAN_FRONTEND=noninteractive apt-get install -y \
+    biber \
     build-essential \
     ccache \
     clang \