[xml] Update Bulgarian localization #143

Job	Run time
build_windows_cmake (Release, x64, amd64)	4m 16s
build_windows_msys2 (Release, x86_64)	5m 40s
build_windows (Release, x64)	3m 32s
build_windows_msys2 (Release, i686)	5m 14s
build_windows_msys2 (Debug, x86_64)	5m 37s
build_windows (Release, Win32)	3m 29s
build_windows_msys2 (Debug, i686)	4m 46s
build_windows (Release, ARM64)	4m 17s
build_windows (Debug, x64)	6m 15s
build_windows (Debug, Win32)	4m 38s
build_windows (Debug, ARM64)	3m 12s
	50m 56s

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