Update scala-library to 2.12.20 (#721)

* Update scala-library to 2.12.20

* Regenerate GitHub Actions workflow

Executed command: sbt githubWorkflowGenerate

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [3.3.3, 2.13.14, 2.12.19]
+        scala: [3.3.3, 2.13.14, 2.12.20]
         java: [temurin@11, temurin@17, temurin@21]
     runs-on: ${{ matrix.os }}
     steps:
@@ -137,12 +137,12 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.12.19)
+      - name: Download target directories (2.12.20)
         uses: actions/download-artifact@v4
         with:
-          name: target-${{ matrix.os }}-2.12.19-${{ matrix.java }}
+          name: target-${{ matrix.os }}-2.12.20-${{ matrix.java }}
 
-      - name: Inflate target directories (2.12.19)
+      - name: Inflate target directories (2.12.20)
         run: |
           tar xf targets.tar
           rm targets.tar

build.sbt

@@ -1,5 +1,5 @@
 val mainScala     = "2.13.14"
-val allScala      = Seq("3.3.3", "2.13.14", "2.12.19")
+val allScala      = Seq("3.3.3", "2.13.14", "2.12.20")
 val zioVersion    = "2.1.9"
 val zioAwsVersion = "7.21.15.15"