Update dependency lit to v2.7.3

Author: renovate[bot]

package.json

@@ -31,7 +31,7 @@
 		"@aggre/ullr": "3.1.3",
 		"highlight.js": "11.7.0",
 		"js-yaml": "4.1.0",
-		"lit": "2.7.2",
+		"lit": "2.7.3",
 		"lit-style": "1.1.4",
 		"markdown-it": "13.0.1",
 		"micro": "9.4.1",

yarn.lock

@@ -4437,10 +4437,10 @@ [email protected]:
     postcss "^7.0.21"
     typescript "^3.6.4"
 
-[email protected].2:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/lit/-/lit-2.7.2.tgz#8084355a3b834a8e62685f2e641242fd7c1698ce"
-  integrity sha512-9QnZmG5mIKPRja96cpndMclLSi0Qrz2BXD6EbqNqCKMMjOWVm/BwAeXufFk2jqFsNmY07HOzU8X+8aTSVt3yrA==
+[email protected].3:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/lit/-/lit-2.7.3.tgz#7f7920dbaba12828d359ca3439cd6f73619061da"
+  integrity sha512-0a+u+vVbmgSfPu+fyvqjMPBX0Kwbyj9QOv9MbQFZhWGlV2cyk3lEwgfUQgYN+i/lx++1Z3wZknSIp3QCKxHLyg==
   dependencies:
     "@lit/reactive-element" "^1.6.0"
     lit-element "^3.3.0"