Avoid using $HOME/.cargo in poetry build

[Flamefire]

(created using eb --new-pr)

Switch to CargoPythonBundle as Rust is used for rpds_py. This sets $CARGO_HOME so $HOME is not used for reading the cargo config which may lead to errors.

Requires

• Set Cargo variables also for extensions easybuild-easyblocks#3576

[Flamefire]

Test report by @Flamefire
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in total)
n1154 - Linux RHEL 8.9 (Ootpa), x86_64, Intel(R) Xeon(R) Platinum 8470 (icelake), Python 3.8.17
See https://gist.github.com/Flamefire/917f11cdab5b1c6728ebcc9bfc152fbf for a full test report.

[Flamefire]

Test report by @Flamefire
Using easyblocks from PR(s) easybuilders/easybuild-easyblocks#3576
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in total)
n1714 - Linux RHEL 8.9 (Ootpa), x86_64, Intel(R) Xeon(R) Platinum 8470 (icelake), Python 3.8.17
See https://gist.github.com/Flamefire/da4da9879e15975fd7c7bd455ea145fa for a full test report.

[Micket]

lgtm

[Flamefire]

@Micket you need the easyblock PR 3576 or this likely fails

[Micket]

@boegelbot please test @ generoso
EB_ARGS="--include-easyblocks-from-pr 3576"

[Micket]

Test report by @Micket
Using easyblocks from PR(s) easybuilders/easybuild-easyblocks#3576
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in total)
vera-skylake-build - Linux Rocky Linux 8.9, x86_64, Intel Xeon Processor (Skylake, IBRS, no TSX), Python 3.6.8
See https://gist.github.com/Micket/3e489227c8ade06b3651e49f536bc57d for a full test report.

[Micket]

Dunno why bot keeps ignoring me, but i don't have time to deal with that right now. This needs fixing and looks good, merging.