CDPS-1096: Reverting to use Kotlin 2.0.21

Author: brightonsbox

.github/workflows/security_owasp.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   security-kotlin-owasp-check:
     name: Kotlin security OWASP dependency check
-    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_owasp.yml@v1 # WORKFLOW_VERSION
+    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_owasp.yml@v2 # WORKFLOW_VERSION
     with:
       channel_id: ${{ vars.SECURITY_ALERTS_SLACK_CHANNEL_ID || 'NO_SLACK' }}
     secrets: inherit

.github/workflows/security_trivy.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   security-kotlin-trivy-check:
     name: Project security trivy dependency check
-    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_trivy.yml@v1 # WORKFLOW_VERSION
+    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_trivy.yml@v2 # WORKFLOW_VERSION
     with:
       channel_id: ${{ vars.SECURITY_ALERTS_SLACK_CHANNEL_ID || 'NO_SLACK' }}
     secrets: inherit

.github/workflows/security_veracode_pipeline_scan.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   security-veracode-pipeline-scan:
     name: Project security veracode pipeline scan
-    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_veracode_pipeline_scan.yml@v1 # WORKFLOW_VERSION
+    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_veracode_pipeline_scan.yml@v2 # WORKFLOW_VERSION
     with:
       channel_id: ${{ vars.SECURITY_ALERTS_SLACK_CHANNEL_ID || 'NO_SLACK' }}
     secrets: inherit

.github/workflows/security_veracode_policy_scan.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   security-veracode-policy-check:
     name: Project security veracode policy scan
-    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_veracode_policy_scan.yml@v1 # WORKFLOW_VERSION
+    uses: ministryofjustice/hmpps-github-actions/.github/workflows/security_veracode_policy_scan.yml@v2 # WORKFLOW_VERSION
     with:
       channel_id: ${{ vars.SECURITY_ALERTS_SLACK_CHANNEL_ID || 'NO_SLACK' }}
     secrets: inherit

build.gradle.kts

@@ -1,6 +1,6 @@
 plugins {
   id("uk.gov.justice.hmpps.gradle-spring-boot") version "6.1.2"
-  kotlin("plugin.spring") version "2.1.0"
+  kotlin("plugin.spring") version "2.0.21"
 }
 
 configurations {
@@ -23,10 +23,6 @@ kotlin {
   jvmToolchain(21)
 }
 
-ktlint {
-  version.set("1.5.0")
-}
-
 tasks {
   withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
     compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_21