merge revision(s) b3d62a77d928eff01268ca7fa1c1c0966702926d: [Backport #17803]

	[ruby/zlib] Synchronize access to zstream to prevent segfault in
	 multithreaded use

	I'm not sure whether this handles all multithreaded use cases,
	but this handles the example that crashes almost immediately
	and does 10,000,000 total deflates using 100 separate threads.

	To prevent the tests from taking forever, the committed test
	for this uses only 10,000 deflates across 10 separate threads,
	which still causes a segfault in the previous implementation
	almost immediately.

	Fixes [Bug #17803]

	https://github.com/ruby/zlib/commit/4b1023b3f2
	---
	 ext/zlib/zlib.c        | 33 ++++++++++++++++++++++++++-
	 test/zlib/test_zlib.rb | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++
	 2 files changed, 93 insertions(+), 1 deletion(-)

1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index 6cd54a49f9..1564bfe8ee 100644
--- a/version.h
+++ b/version.h
@@ -12,7 +12,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 4
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 178
+#define RUBY_PATCHLEVEL 179
 
 #define RUBY_RELEASE_YEAR 2022
 #define RUBY_RELEASE_MONTH 2