Update all non-major dependencies

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.apache.maven.plugins:maven-javadoc-plugin	3.7.0 -> 3.8.0
com.google.errorprone:error_prone_annotations (source)	2.29.0 -> 2.29.2
com.google.cloud.tools:appengine-maven-plugin (source)	2.8.0 -> 2.8.1
io.netty:netty-transport-native-unix-common (source)	4.1.111.Final -> 4.1.112.Final
io.netty:netty-transport (source)	4.1.111.Final -> 4.1.112.Final
io.netty:netty-handler (source)	4.1.111.Final -> 4.1.112.Final
io.netty:netty-common (source)	4.1.111.Final -> 4.1.112.Final
io.netty:netty-codec-http2 (source)	4.1.111.Final -> 4.1.112.Final
io.netty:netty-codec-http (source)	4.1.111.Final -> 4.1.112.Final
io.netty:netty-codec (source)	4.1.111.Final -> 4.1.112.Final
io.netty:netty-buffer (source)	4.1.111.Final -> 4.1.112.Final

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Release Notes

google/error-prone (com.google.errorprone:error_prone_annotations)

v2.29.2: Error Prone 2.29.2

Compare Source

This release contains all of the changes in 2.29.0 and 2.29.1, plus:

• a bug fix for a crash in TraditionalSwitchExpression (https://github.com/google/error-prone/issues/4479)
• restores the module-info for the annotations jar, which was accidentally removed (https://github.com/google/error-prone/issues/4480)

Full Changelog: google/error-prone@v2.29.1...v2.29.2

v2.29.1: Error Prone 2.29.1

Compare Source

This release contains all of the changes in 2.29.0, plus:

• a bug fix to UnusedVariable to handle unnamed _ variables (https://github.com/google/error-prone/issues/4451)
• a bug fix for a crash in SetUnrecognized (https://github.com/google/error-prone/issues/4475)

Full Changelog: google/error-prone@v2.29.0...v2.29.1

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