Update scala-library, scala-reflect to 2.12.16 (#974)

* Update scala-library, scala-reflect to 2.12.16

* Regenerate GitHub Actions workflow

Executed command: sbt githubWorkflowGenerate

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.8, 2.12.15]
+        scala: [2.13.8, 2.12.16]
         java: [temurin@8, temurin@17]
     runs-on: ${{ matrix.os }}
     steps:
@@ -133,12 +133,12 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.12.15)
+      - name: Download target directories (2.12.16)
         uses: actions/download-artifact@v2
         with:
-          name: target-${{ matrix.os }}-2.12.15-${{ matrix.java }}
+          name: target-${{ matrix.os }}-2.12.16-${{ matrix.java }}
 
-      - name: Inflate target directories (2.12.15)
+      - name: Inflate target directories (2.12.16)
         run: |
           tar xf targets.tar
           rm targets.tar

project/Dependencies.scala

@@ -6,7 +6,7 @@ object Dependencies {
   val minorVersion = SettingKey[Int]("minor scala version")
 
   object Version {
-    val scala212 = "2.12.15"
+    val scala212 = "2.12.16"
 
     val scala213 = "2.13.8"