Workflow updates

- Do not re-run PR tests on edited PRs
- Close added/fixed issues on published release
- Issues stale after 60 days instead of 30, close after 10 days instead of 5
- Use Vankka/pr-target-branch-action for checking that PR is made to proper branch
- Add version number to sphinx config, must use cmake to configure the file
- Add jobs to readthedocs.yaml configuration

CMakeLists.txt

@@ -319,6 +319,7 @@ else()
 endif()
 
 configure_file(version.h.in version.h @ONLY)
+configure_file(docs/source/conf.py.in "${CMAKE_CURRENT_SOURCE_DIR}/docs/source/conf.py" @ONLY)
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 set(SUNSHINE_TARGET_FILES