Bump llvmlite from 0.31.0 to 0.34.0

Bumps llvmlite from 0.31.0 to 0.34.0.

Commits

• c5889c9 Merge pull request #616 from esc/fix/changelog
• eb2025c Merge pull request #614 from esc/fix/wheel_build
• fd1db08 add additional PRs that will be merged
• a0fa0a0 fix release date in changelog
• 34cd3f0 Fix wheel building.
• 468c16c Merge pull request #612 from sklam/fix/master
• b67906a Merge branches 'pr/599', 'pr/598', 'pr/602' and 'pr/610'
• 1910c16 Revert "LLVM 10 (#599)"
• 32f08b3 Revert "Fix flake8 in setup.py (#598)"
• d26c5ba Revert "add missing hosts to wheel build (#602)"
• Additional commits viewable in compare view

... and the dependent modules numba and pandas