Update scala-library, scala-reflect to 2.12.13

Author: scala-steward

Diff for: .github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         java: [1.8, 1.11, 1.14]
-        scala: [2.12.12, 2.13.4]
+        scala: [2.12.13, 2.13.4]
     steps:
     - uses: actions/checkout@v2
     - name: Set up JDK ${{ matrix.java }}

Diff for: .github/workflows/mima.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         java: [1.14]
-        scala: [2.12.12, 2.13.4]
+        scala: [2.12.13, 2.13.4]
     steps:
     - uses: actions/checkout@v2
       with:

Diff for: .github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         java: [1.14]
-        scala: [2.12.12, 2.13.4]
+        scala: [2.12.13, 2.13.4]
     steps:
     - uses: actions/checkout@v2
       with:

Diff for: project/Dependencies.scala

@@ -7,7 +7,7 @@ object Dependencies {
   lazy val specs2Version = "4.10.6"
 
   val scala_213 = "2.13.4"
-  val scala_212 = "2.12.12"
+  val scala_212 = "2.12.13"
 
   lazy val http4sServer        = "org.http4s"                 %% "http4s-server"         % http4sVersion
   lazy val http4sDSL           = "org.http4s"                 %% "http4s-dsl"            % http4sVersion