Firtool Release 1.42.0

Please note, the previous release of firtool, firtool-1.41.0 has a compilation error. Please use this release instead.

What's Changed

• [CI] Add python3.8 manylinux wheel by @rsetaluri in #5174
• [FIREmitter] Use PrettyPrinter for breaking/indenting. by @dtzSiFive in #5176
• [HWArithToHW] Restore access to HWArith-specific patterns. by @jopperm in #5185
• [firtool] Erase extra verbatim files before printing final MLIR. by @mikeurbach in #5181
• [FIRRTL] Fix connect verifier for enums by @youngar in #5183
• [Arc] MemoryReadPortOp: remove enable and clock operand, make it pure by @maerhart in #5194
• [Arc] Fix arc.output verifier by @maerhart in #5197
• [Arc] Include the addressing type in the memory type by @maerhart in #5195

Full Changelog: firtool-1.41.0...firtool-1.42.0