add scala 2.13.15 (#877)

* add scala 2.13.15

* apply changes to pr-checks.yml

Author: drewfeelsblue

.github/workflows/pr-checks.yml

@@ -12,10 +12,10 @@ jobs:
         scala:
           - 2.12.19
           - 2.12.20
-          - 2.13.13
           - 2.13.14
+          - 2.13.15
           - 3.3.3
-          - 3.5.0
+          - 3.5.1
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4

build.sbt

@@ -20,7 +20,7 @@ developers := List(
 )
 
 scalaVersion := "3.5.1"
-crossScalaVersions := Seq("2.12.19", "2.12.20", "2.13.13", "2.13.14", "3.3.3", "3.5.1")
+crossScalaVersions := Seq("2.12.19", "2.12.20", "2.13.14", "2.13.15", "3.3.3", "3.5.1")
 autoScalaLibrary := false
 crossVersion := CrossVersion.full
 crossTarget := {