Merge EPA 5.2.4

update actions runner

- add caching for boost
- update boost to 1.81
- update nrtest benchmarks for swmm 5.2.1

Merge in USEPA-SWMM5.2.0

Bump version

Merge pull request #379 from OpenWaterAnalytics/merge_usepa5115

Merged in USEPA-SWMM5.1.15

Merge pull request #99 from USEPA/release

Release

Merge pull request #91 from USEPA/release

Master <- Release

OWA SWMM 5.1.14 Release Version