Mekanism Additions

Warning: Mekanism is currently in alpha, and is not recommended for widespread use in modpacks. There are likely to be game breaking bugs, and updating from one alpha to the next may cause various mekanism blocks to disappear/void their contents. While we will try to not have this happen/keep it to a minimum make sure to make backups. You can read more about the alpha state of this project here.

2f5f835 - Update maven example version to a 1.21.1 build and one that contains the breaking API changes we made to chemicals
30c1b84 - fix TEPs getting stuck paused when full tank is drained when temp lower than min production (caused by f5d7a1e671cefd52e94855858dc7647ceb88d1c5)
e4ba3cc - bum version to 10.7.1