Bump submodules/googletest from `c875c4e` to `455fcb7` #202

Job	Run time
Ubuntu (linux, ubuntu-20.04, x64, openssl) / Build	4m 30s
Ubuntu (linux, ubuntu-22.04, x64, openssl3) / Build	5m 22s
Windows (windows, windows-2022, x64, openssl3) / Build	8m 19s
Windows (windows, windows-2022, x64, openssl) / Build	7m 41s
Build All Darwin Frameworks / Build Darwin Binaries (ios, x64) / Build	4m 35s
Build All Darwin Frameworks / Build Darwin Binaries (macos, x64) / Build	4m 12s
Build All Darwin Frameworks / Build Darwin Binaries (macos, arm64) / Build	3m 44s
Build All Darwin Frameworks / Build Darwin Binaries (ios, arm64) / Build	4m 59s
Build All Darwin Frameworks / Build Universal Binaries	1m 0s
Build All Darwin Frameworks / Build Darwin Framework (ios, x64)	31s
Build All Darwin Frameworks / Build Darwin Framework (ios, arm64)	1m 27s
Build All Darwin Frameworks / Build Darwin Framework (macos, universal)	42s
Build All Darwin Frameworks / Build Darwin XCFramework	53s
DotNet Test (windows, windows-2022, x64, openssl)	1m 27s
DotNet Test (windows, windows-2022, x64, openssl3)	2m 12s
DotNet Test (linux, ubuntu-20.04, x64, openssl)	2m 21s
DotNet Test (linux, ubuntu-22.04, x64, openssl3)	1m 55s
DotNet Test (macos, macos-12, universal, openssl)	1m 12s
	57m 2s

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