Bump conda-reqs | Bump Chipyard

[abejgonzalez]

Chipyard bumped to a newer version of the toolchain (FireMarshal bump that also removed the need for e2fsprogs in the conda env) that needs to be updated in the conda requirements. I also pinned s3fs to =0.4.6 to avoid issues where aiobotocore (a prereq of s3fs) would be updated too far and break pytests.

Additionally, we plan on bumping to a newer version of Verilator that removes the C++ top-level in favor of Rocket Chips TestDriver.v as the top level. This is compatible with current Verilator makefiles. This is broken in FireSim so I will delay this to the following release.

Related PRs / Issues

UI / API Impact

Verilog / AGFI Compatibility

No changes to Verilog so no AGFIs were regenerated.

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[abejgonzalez]

Side Note: This commit was accidentally added to main (and was subsequently reverted). I updated the main branch rules to make it read-only (no pushes).