[configparser] Fix Build Python 3.10 Build

The Python 3.10 upgrade in the Base Images also updated the default
`setuptools` >= 71.0.0 and its new approach to vendoring dependencies
that is not supported by the current configparser backport fuzzer
implementations.

This fix installs a version of setuptools that is known to work.

projects/configparser/Dockerfile

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 FROM gcr.io/oss-fuzz-base/base-builder-python
-RUN pip3 install --upgrade pip
+RUN python -m pip install 'setuptools~=69.0'
 RUN git clone https://github.com/jaraco/configparser/ configparser
 COPY *.sh *py $SRC/
 WORKDIR $SRC/configparser

projects/configparser/build.sh

@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 ################################################################################
-pip3 install .
+python -m pip install .
 # Build fuzzers in $OUT.
 for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
   compile_python_fuzzer $fuzzer