Pin git to 2.51.0

Author: seladb

.github/workflows/build_and_test.yml

@@ -751,7 +751,7 @@ jobs:
           release: ${{ matrix.version }}
           usesh: true
           prepare: |
-            pkg install -y python bash cmake git gmake gsed libpcap tcpreplay libffi openssl py311-cryptography
+            pkg install -y python bash cmake git-2.51.0 gmake gsed libpcap tcpreplay libffi openssl py311-cryptography
             sysctl kern.ipc.maxsockbuf=16777216
           run: |
             set -e