build(deps): update gevent requirement from <27,>=26.7.0 to >=26.9.0,<27 (#136)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: William Bergamin <wbergamin@salesforce.com>
Co-authored-by: William Bergamin <william.bergamin.coen@gmail.com>
Co-authored-by: Claude <svc-devxp-claude@slack-corp.com>

Author: 3 people

requirements/testing.txt

@@ -11,7 +11,8 @@ pytest-cov>=7.1.0,<8
 Flask>=3.1.3,<4
 
 # gevent
-gevent>=26.7.0,<27
+gevent>=26.7.0,<26.8; python_version == "3.9"
+gevent>=26.9.0,<27; python_version >= "3.10"
 
 # gevent-websocket
 gevent-websocket>=0.10.1,<1