merge revision(s) b3c53a8a885be8f5cc2b712798b0d2741c488ce4: [Backport #17672]

	Make Ractor stdio belonging to the Ractor [Bug #17672]

	Defer making ractor stdio until ractor started.
	Before ractor started, created objects belong to the caller ractor
	instead of the created ractor.
	---
	 bootstraptest/test_ractor.rb | 12 ++++++++++++
	 ractor.c                     |  9 ---------
	 thread.c                     |  9 +++++++++
	 3 files changed, 21 insertions(+), 9 deletions(-)

1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index 1ca6c45f81..3c2bc70b98 100644
--- a/version.h
+++ b/version.h
@@ -12,7 +12,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 54
+#define RUBY_PATCHLEVEL 55
 
 #define RUBY_RELEASE_YEAR 2021
 #define RUBY_RELEASE_MONTH 3