deps: bump protobuf from 3.14.0 to 3.19.4

[dependabot[bot]]

Bumps protobuf from 3.14.0 to 3.19.4.

Release notes

Sourced from protobuf's releases.

Protocol Buffers v3.19.4

Python

• Make libprotobuf symbols local on OSX to fix issue #9395 (#9435)

Ruby

• Fixed a data loss bug that could occur when the number of optional fields in a message is an exact multiple of 32. (#9440).

PHP

• Fixed a data loss bug that could occur when the number of optional fields in a message is an exact multiple of 32. (#9440).

Protocol Buffers v3.19.3

Python

• Fix missing Windows wheel for Python 3.10 on PyPI

Protocol Buffers v3.19.2

Java

• Improve performance characteristics of UnknownFieldSet parsing (#9371)
• This release addresses a Security Advisory for Java users

Protocol Buffers v3.19.1

Bazel

• Ensure that release archives contain everything needed for Bazel (#9131)
• Align dependency handling with Bazel best practices (#9165)

JavaScript

• Fix ReferenceError: window is not defined when getting the global object (#9156)

Ruby

• Fix memory leak in MessageClass.encode (#9150)

Protocol Buffers v3.19.0

C++

• Make proto2::Message::DiscardUnknownFields() non-virtual
• Separate RepeatedPtrField into its own header file
• For default floating point values of 0, consider all bits significant
• cmake: support MSVC_RUNTIME_LIBRARY property (#8851)
• Fix shadowing warnings (#8926)
• Fix for issue #8484, constant initialization doesn't compile in msvc clang-cl environment (#8993)
• Fix build on AIX and SunOS (#8373) (#9065)
• Add Android stlport and default toolchains to BUILD. (#8290)

Java

• For default floating point values of 0, consider all bits significant
• Annotate //java/com/google/protobuf/util/... with nullness annotations
• Use ArrayList copy constructor (#7853)

Kotlin

• Switch Kotlin proto DSLs to be implemented with inline value classes
• Fixing inlining and deprecation for repeated string fields (#9120)

... (truncated)

Commits

• 22d0e26 Update protobuf version for 3.19.4 (#9449)
• afeb6d8 Merge pull request #9451 from haberman/ruby-dataloss-bugfix
• 98b8e05 Merge branch '3.19.x' into ruby-dataloss-bugfix
• eb301e1 Merge pull request #9450 from haberman/php-dataloss-bugfix
• aceff71 Fixed data loss bug in Ruby extension.
• 35a21c1 Added CHANGES.txt entry.
• 67995fb Fixed data loss bug with PHP C extension.
• 779b972 Update CHANGES.txt for 3.19.4 release (#9448)
• a035bd0 Make libprotobuf symbols local on OSX (#8346) (#9435)
• cc7b1b5 Update protobuf version
• Additional commits viewable in compare view

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Superseded by #634.