add missing commas in .scala-steward.conf (#1597)

Author: pjfanning

.scala-steward.conf

@@ -12,9 +12,9 @@ updates.pin = [
   # aeron 1.46 requires Java 17
   { groupId = "io.aeron", version = "1.45." }
   # agrona 1.23 requires Java 17
-  { groupId = "org.agrona", artifactId = "agrona" version = "1.22." }
+  { groupId = "org.agrona", artifactId = "agrona", version = "1.22." }
   # bndlib 7 requires Java 17
-  { groupId = "biz.aQute.bnd", artifactId = "biz.aQute.bndlib" version = "6." }
+  { groupId = "biz.aQute.bnd", artifactId = "biz.aQute.bndlib", version = "6." }
 ]
 
 updates.ignore = [