chore: drop support for anything older than 2.12.16

ckipp01 · ckipp01 · commit cc1a31423631 · 2024-02-23T13:05:29.000+01:00
Following what semanticdb has done.
diff --git a/build.sbt b/build.sbt
@@ -11,13 +11,7 @@ lazy val bin212 =
     defaultScala212,
     "2.12.18",
     "2.12.17",
-    "2.12.16",
-    "2.12.15",
-    "2.12.14",
-    "2.12.13",
-    "2.12.12",
-    "2.12.11",
-    "2.12.10"
+    "2.12.16"
   )
 lazy val bin213 =
   Seq(
