Remove jbArchiva plugin and switch to Gitea maven.

buildSrc/src/main/groovy/ssg-common.gradle

@@ -1,6 +1,6 @@
 plugins {
-    id 'com.jessebrault.jbarchiva'
     id 'java'
+    id 'maven-publish'
 }
 
 group 'com.jessebrault.ssg'
@@ -47,3 +47,21 @@ testing {
         }
     }
 }
+
+publishing {
+    repositories {
+        maven {
+            name = 'Gitea'
+            url = uri('https://git.jessebrault.com/api/packages/jessebrault/maven')
+
+            credentials(HttpHeaderCredentials) {
+                name = "Authorization"
+                value = "token ${System.getenv("GITEA_ACCESS_TOKEN")}"
+            }
+
+            authentication {
+                header(HttpHeaderAuthentication)
+            }
+        }
+    }
+}