doc: add release notes for new rate limiting logging behavior

Author: Crypt-iQ

doc/release-notes-32604.md

@@ -0,0 +1,10 @@
+Logging
+-------
+Unconditional logging to disk is now rate limited by giving each source location
+a quota of 1MiB per hour. Unconditional logging is any logging with a log level
+higher than debug, that is `info`, `warning`, and `error`. All logs will be
+prefixed with `[*]` if there is at least one source location that is currently
+being suppressed. (#32604)
+
+When `-logsourcelocations` is enabled, the log output now contains the entire
+function signature instead of just the function name. (#32604)