Bump wasmtime from 0.20.0 to 0.31.0 in /wasmtime-jni

[dependabot[bot]]

Bumps wasmtime from 0.20.0 to 0.31.0.

Commits

• c1a6a05 Release Wasmtime 0.31.0 (#3489)
• 0737afe Fix some typos in the bump-version.yml workflow (#3488)
• c26197e Fix the publish script to ignore witx more (#3486)
• 5c3155f Merge pull request #3485 from alexcrichton/manual-trigger-bump
• 909a5d5 Add a manual trigger to force CI to bump crate versions
• 9a4afc5 Add notes for Wasmtime 2021-10-28 meeting (#3484)
• a2d83d4 Merge pull request #3481 from bytecodealliance/pch/ci_apt_update_before_install
• dfebb3e CI Check job: run apt-get update before apt-get install
• 49133f6 Merge pull request #3476 from fitzgen/logging-in-cranelift-test-compile
• 8aa8dfe cranelift: in test_compile filetest, log disasm not clif
• Additional commits viewable in compare view

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