Handle empty addresses in `CLUSTER NODES` responses #459

Job	Run time
Run static checkers	34s
Installation tests	16s
macOS	1m 16s
Build for 32-bit	1m 16s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer=""]	2m 39s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="thread"]	2m 57s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="undefined"]	2m 43s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="leak"]	2m 50s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="address"]	3m 36s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer=""]	2m 58s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="thread"]	3m 13s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="undefined"]	2m 52s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="leak"]	2m 51s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="address"]	2m 57s
Build with CMake [Debug, clang-18, cmake-3.29, sanitizer=""]	2m 55s
Build with CMake [Release, gcc-7, cmake-3.13, sanitizer=""]	4m 10s
Build with make	2m 36s
Windows	5m 43s
Build with CMake [Release, clang-12, cmake-3.13, sanitizer=""]	5m 27s
Windows (MinGW64)	53s
	54m 42s

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