Update Gradle wrapper to 8.13, bump Kotlin to 2.1.20, and MockK to 1.14.0; don't set strict version for commons anymore

Author: rfc2822

gradle/libs.versions.toml

@@ -1,26 +1,22 @@
 [versions]
 agp = "8.7.3"
-android-desugar = "2.1.3"
-androidx-core = "1.15.0"
+android-desugar = "2.1.5"
+androidx-core = "1.16.0"
 androidx-test-rules = "1.6.1"
 androidx-test-runner = "1.6.2"
-commons-codec = { strictly = "1.17.1" }
-commons-lang = { strictly = "3.15.0" }
-dokka  ="1.9.20"
+dokka = "1.9.20"
 # noinspection GradleDependency
 ical4j = "3.2.19"   # final version; update to 4.x will require much work
 junit = "4.13.2"
-kotlin = "2.1.0"
-mockk = "1.13.13"
+kotlin = "2.1.20"
+mockk = "1.14.0"
 slf4j = "2.0.16"
 
 [libraries]
 android-desugaring = { module = "com.android.tools:desugar_jdk_libs", version.ref = "android-desugar" }
 androidx-core = { module = "androidx.core:core-ktx", version.ref = "androidx-core" }
 androidx-test-rules = { module = "androidx.test:rules", version.ref = "androidx-test-rules" }
 androidx-test-runner = { module = "androidx.test:runner", version.ref = "androidx-test-runner" }
-commons-codec = { module = "commons-codec:commons-codec", version.ref = "commons-codec" }
-commons-lang = { module = "org.apache.commons:commons-lang3", version.ref = "commons-lang" }
 ical4j = { module = "org.mnode.ical4j:ical4j", version.ref = "ical4j" }
 junit = { module = "junit:junit", version.ref = "junit" }
 kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib", version.ref = "kotlin" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

lib/build.gradle.kts

@@ -94,9 +94,6 @@ dependencies {
 
     implementation(libs.androidx.core)
     api(libs.ical4j)
-    // Force latest version of commons libraries
-    implementation(libs.commons.codec)
-    implementation(libs.commons.lang)
     implementation(libs.slf4j)       // ical4j logging over java.util.Logger
 
     androidTestImplementation(libs.androidx.test.rules)