Python 3.11 support + update RedHat CPack (#254)

* Fixes for Python 3.11

* Add python 3.11 to scripts

- also tweak to to{upper,lower} bash functions

* Fix PAPI RPM packaging in RedHat

- fix error from #!/usr/bin/python in papi_hl_output_writer.py
  - requires either python2 or python3 instead of python

* cpack updates

- only generate STGZ for RedHat
- support `--generators` arg in build-release.sh
- support 7z, zip, and other zip generators
- fix build-release.sh with `--mpi`
- support setting CONDA_ROOT

* Support rhel/fedora/centos in omnitrace-install.py

* RedHat status badge

* Fix support for Python 3.11 + tweak ubuntu ci

- Remove installing clang and mpich in Ubuntu CI container
- Fallback on conda-forge for Python 3.11
- Enable entrypoint-rhel.sh for RHEL CI
- Pull latest container by default

* Update ElfUtils and PAPI builds

- quieter build output
- disable-nls for ElfUtils
- use -s flag for make

* Development Guide Docs

docker/Dockerfile.opensuse.ci

@@ -33,16 +33,16 @@ RUN cd /tmp/dyninst && \
     shopt -s dotglob extglob && \
     rm -rf *
 
-ARG PYTHON_VERSIONS="6 7 8 9 10"
+ARG PYTHON_VERSIONS="6 7 8 9 10 11"
 
 RUN wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh && \
     bash miniconda.sh -b -p /opt/conda && \
     export PATH="/opt/conda/bin:${PATH}" && \
     conda config --set always_yes yes --set changeps1 no && \
     conda update -c defaults -n base conda && \
-    for i in ${PYTHON_VERSIONS}; do conda create -n py3.${i} -c defaults python=3.${i} pip numpy; done && \
-    conda clean -a -y && \
+    for i in ${PYTHON_VERSIONS}; do conda create -n py3.${i} -c defaults -c conda-forge python=3.${i} pip numpy; done && \
     for i in ${PYTHON_VERSIONS}; do /opt/conda/envs/py3.${i}/bin/python -m pip install numpy perfetto dataclasses; done && \
+    conda clean -a -y && \
     cd /tmp && \
     shopt -s dotglob extglob && \
     rm -rf *