Merge branch 'master' into dependabot/github_actions/codecov/codecov-action-5.4.0

Author: antonpirker

sentry_sdk/tracing_utils.py

@@ -543,6 +543,10 @@ def _sample_rand(self):
 class Baggage:
     """
     The W3C Baggage header information (see https://www.w3.org/TR/baggage/).
+
+    Before mutating a `Baggage` object, calling code must check that `mutable` is `True`.
+    Mutating a `Baggage` object that has `mutable` set to `False` is not allowed, but
+    it is the caller's responsibility to enforce this restriction.
     """
 
     __slots__ = ("sentry_items", "third_party_items", "mutable")