fix(sbt): Parse version lines with classifier keyword (#6780)

lib/manager/sbt/__fixtures__/sample.sbt

@@ -7,6 +7,7 @@ libraryDependencies ++= Seq(
   "org.example" %% "baz" % "0.0.3",
   "org.example" % "qux" % "0.0.4"
 )
+libraryDependencies += ("org.scala-lang" % "scala-library" % "2.13.3" classifier "sources") % Test
 
 dependencyOverrides += "org.example" % "quux" % "0.0.5"
 dependencyOverrides ++= {

lib/manager/sbt/__snapshots__/extract.spec.ts.snap

@@ -109,6 +109,21 @@ Object {
         "https://example.com/repos/5/",
       ],
     },
+    Object {
+      "currentValue": "2.13.3",
+      "datasource": "sbt-package",
+      "depName": "org.scala-lang:scala-library",
+      "depType": "sources",
+      "lookupName": "org.scala-lang:scala-library",
+      "registryUrls": Array [
+        "https://repo.maven.apache.org/maven2",
+        "https://example.com/repos/1/",
+        "https://example.com/repos/2/",
+        "https://example.com/repos/3/",
+        "https://example.com/repos/4/",
+        "https://example.com/repos/5/",
+      ],
+    },
     Object {
       "currentValue": "0.0.5",
       "datasource": "sbt-package",

lib/manager/sbt/extract.ts

@@ -113,7 +113,11 @@ function parseDepExpr(
       ? str.replace(/^"/, '').replace(/"$/, '')
       : variables[str].val;
 
-  const tokens = expr.trim().split(/\s*(%%?)\s*/);
+  const tokens = expr
+    .trim()
+    .replace(/[()]/g, '')
+    .split(/\s*(%%?)\s*|\s*classifier\s*/);
+
   const [
     rawGroupId,
     groupOp,