Update dependency wpackagist-plugin/katex to v2.2.2

This MR contains the following updates:

Package	Type	Update	Change
wpackagist-plugin/katex (source)	require	patch	2.2.1 -> 2.2.2

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composer.json

@@ -108,7 +108,7 @@
         "wpackagist-plugin/wp2pgpmail": "1.28",
         "wpackagist-plugin/buddypress": "9.1.1",
         "noblogs/noblogs-home": "0.1.4",
-        "wpackagist-plugin/katex": "2.2.1",
+        "wpackagist-plugin/katex": "2.2.2",
         "noblogs/eu-compliance": "0.1.0",
         "noblogs/nospam": "0.2.2",
         "noblogs/themes-misc": "0.1.2",