fix: provide non-static recursive mutex initializer #2013

Job	Run time
Xcode Build for iOS	56s
Lint	19s
Linux (GCC 7, 32-bit)	1m 28s
Linux (GCC 9.4.0)	7m 50s
Linux (GCC 12)	7m 42s
Linux (clang 15 + asan + llvm-cov)	8m 26s
Linux (clang 15 + kcov)	27m 53s
Linux (gcc 12 + code-checker + valgrind)	7m 15s
macOS 14 (xcode llvm)	6m 32s
macOS 13 (xcode llvm)	9m 5s
macOS 14 (xcode llvm + universal)	9m 57s
macOS 15 (clang 18 + asan + llvm-cov)	12m 40s
Windows (old VS, 32-bit)	10m 37s
Windows (latest)	10m 21s
LLVM-Mingw	16m 20s
Android (API 35, NDK 27)	4m 32s
Create Release Archive	0s
	2h 21m 53s

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