ci: run testsuite python2 transpilation

users have run into issues with the testsuite's python2, so we should test it in CI

more coverage is better, and it's not clear why this wasn't being included before

Author: fw-immunant

.github/workflows/internal-testsuite.yml

@@ -96,8 +96,11 @@ jobs:
         sudo apt-get -qq install    \
             build-essential         \
             libbrotli-dev           \
+            libbz2-dev              \
             libclang-${{ matrix.clang-version }}-dev \
+            libdb-dev               \
             libgcrypt20             \
+            libgdbm-dev             \
             libreadline-dev         \
             libidn2-dev             \
             libldap2-dev            \
@@ -111,6 +114,8 @@ jobs:
             python3-setuptools      \
             python3-wheel           \
             rcs                     \
+            tcl-dev                 \
+            tk-dev                  \
             zlib1g-dev
 
     # installs intercept-build to $HOME/.local/bin
@@ -130,7 +135,7 @@ jobs:
         find testsuite -type f -name compile_commands.json -delete
         export PATH=$PWD/target/release:$HOME/.local/bin:$PATH
         echo "PATH=$PATH"
-        python3 testsuite/test.py curl json-c lua nginx zstd libxml2
+        python3 testsuite/test.py curl json-c lua nginx zstd libxml2 python2
 
     - uses: actions/upload-artifact@v4
       with: