Bump me.modmuss50.mod-publish-plugin from 0.8.1 to 0.8.4

Bumps me.modmuss50.mod-publish-plugin from 0.8.1 to 0.8.4.

---
updated-dependencies:
- dependency-name: me.modmuss50.mod-publish-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -6,7 +6,7 @@ buildscript {
 
 plugins {
 	id "fabric-loom" version "1.9-SNAPSHOT"
-	id "me.modmuss50.mod-publish-plugin" version "0.8.1"
+	id "me.modmuss50.mod-publish-plugin" version "0.8.4"
 	id "com.diffplug.spotless" version "6.25.0"
 }