SILKIT-1691: Prevent creation of multiple RPCServerInternal for same ClientUUID #615

Job	Run time
License checks for SIL Kit sources	23s
check-run-builds	3s
Format checks for SIL Kit sources	41s
Address Sanitizer Tests / clang-asan	22m 59s
Undefined Behavior Sanitizer Tests / Undefined Behavior Sanitizer Tests	29m 43s
macos-release-builds / build-macos	9m 27s
Thread Sanitizer Tests / Thread Sanitizer Tests	18m 33s
mingw-release-builds / msys2/mingw64 x86_64	21m 52s
ubuntu-arm-release-builds / clang-18 release Builds for Ubuntu ARM64	5m 49s
ubuntu-release-builds / clang-18 release Builds for Ubuntu	17m 1s
windows-release-builds / build-win-x32	22m 44s
ubuntu-release-builds / gcc release Builds for Ubuntu	14m 49s
windows-release-builds / build-win-x64	24m 2s
	3h 8m 6s

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