Move the `build-mylib` test into the regular test suite (and get rid of the separate `build-mylib` CI job)#991

Draft

DilumAluthge wants to merge 3 commits intomasterfrom

dpa/build-mylib-separate-ci-job

Commits on Nov 24, 2024

Move the `build-mylib` test into the regular test suite (and get rid of the separate `build-mylib` CI job)
DilumAluthge
committed
Set `JULIA_PROJECT` when running the subprocess in `ensurecompiled()`
DilumAluthge
committed

Commits on Nov 25, 2024

Revert "Set `JULIA_PROJECT` when running the subprocess in `ensurecompiled()`"
DilumAluthge
committed