Update worker requirement from 0.0.19 to 0.0.20

[dependabot[bot]]

Updates the requirements on worker to permit the latest version.

Release notes

Sourced from worker's releases.

V0.0.20

What's Changed

• Add response_body function to r2::ObjectBody. by @​mcnulty in cloudflare/workers-rs#462
• Add cf.as_organization function by @​kpcyrd in cloudflare/workers-rs#461
• Added support for R2 Checksums to GET and PUT. by @​spigaz in cloudflare/workers-rs#460

New Contributors

• @​mcnulty made their first contribution in cloudflare/workers-rs#462
• @​spigaz made their first contribution in cloudflare/workers-rs#460

Full Changelog: https://github.com/cloudflare/workers-rs/compare/v0.0.19...v0.0.20

Commits

• c0bf5cd Release v0.0.20 (#463)
• 3f1f783 Added support for R2 Checksums to GET and PUT. (#460)
• 9328b29 Add cf.as_organization function (#461)
• 3b92e32 Add response_body function to r2::ObjectBody. (#462)
• See full diff in compare view

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[andrewdavidmackenzie]

@dependabot rebase

[dependabot[bot]]

Looks like worker is up-to-date now, so this is no longer needed.

[dependabot[bot]]

Looks like this PR is closed. If you re-open it, I'll rebase it, as long as no-one else has edited it.