drgn install workaround for libelf

Author: PaulZ-98

.github/scripts/install-drgn.sh

@@ -10,5 +10,6 @@ sudo apt install bison flex libelf-dev libdw-dev libomp5 libomp-dev
 git clone https://github.com/osandov/drgn.git
 
 cd drgn
+git checkout -b drgn_february 0a6aaaae5d31ed142448f8220e208d65478ec80d
 python3 setup.py install
 cd -