Update scala-reflect to 2.12.16

Author: typelevel-steward[bot]

.github/workflows/ci.yml

@@ -28,11 +28,11 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.8, 2.12.15, 3.0.2]
+        scala: [2.13.8, 2.12.16, 3.0.2]
         java: [temurin@8, temurin@11]
         project: [rootJS, rootJVM]
         exclude:
-          - scala: 2.12.15
+          - scala: 2.12.16
             java: temurin@11
           - scala: 3.0.2
             java: temurin@11

build.sbt

@@ -1,7 +1,7 @@
 import com.typesafe.tools.mima.core._
 
 val Scala213 = "2.13.8"
-val Scala212 = "2.12.15"
+val Scala212 = "2.12.16"
 val Scala3 = "3.0.2"
 
 ThisBuild / tlBaseVersion := "2.3"