Backport protect 6.1.0 changes (#51219)

* Changelog and readme.txt edits.

* Update stable tag in readme.txt

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Co-authored-by: Chris Jean <chris.jean@automattic.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/31620993754

Upstream-Ref: Automattic/jetpack@859855c

Author: chrisbliss18

composer.json

@@ -7,7 +7,7 @@
 		"php": ">=7.2",
 		"automattic/jetpack-assets": "^4.4.10",
 		"automattic/jetpack-config": "^3.1.3",
-		"automattic/jetpack-connection": "^8.10.1-alpha",
+		"automattic/jetpack-connection": "^8.10.1",
 		"automattic/jetpack-stats": "^0.20.2-alpha",
 		"automattic/jetpack-status": "^6.3.1-alpha",
 		"automattic/jetpack-sync": "^4.45.3",