build(deps): bump base64 from 0.21.0 to 0.21.4

[dependabot[bot]]

Bumps base64 from 0.21.0 to 0.21.4.

Changelog

Sourced from base64's changelog.

0.21.4

• Make encoded_len const, allowing the creation of arrays sized to encode compile-time-known data lengths

0.21.3

• Implement source instead of cause on Error types
• Roll back MSRV to 1.48.0 so Debian can continue to live in a time warp
• Slightly faster chunked encoding for short inputs
• Decrease binary size

0.21.2

• Rollback MSRV to 1.57.0 -- only dev dependencies need 1.60, not the main code

0.21.1

• Remove the possibility of panicking during decoded length calculations
• DecoderReader no longer sometimes erroneously ignores padding #226

Breaking changes

• Engine.internal_decode return type changed
• Update MSRV to 1.60.0

Commits

• b88fd5b v0.21.4
• c70a896 Merge pull request #252 from marshallpierce/mp/const-encoded_len
• 59048ff Make encoded_len const
• 6f9f734 v0.21.3
• a7e1f47 Merge pull request #224 from marshallpierce/mina86-a
• 96b29d8 Improve comments and increase test paranoia.
• 2b5112f Merge branch 'master' into mina86-a
• a3f692b Merge pull request #250 from marshallpierce/mp/esw-test
• a589c62 Add a test to EncoderStringWriter
• 70d2b53 Merge pull request #249 from marshallpierce/mp/cleanup
• Additional commits viewable in compare view

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[belveryin]

@dependabot rebase.

[belveryin]

Closing as it is updated in another PR.

[dependabot[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

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