build: improve configuration cache behavior by using stable line endings (#339)

Signed-off-by: Jendrik Johannes <jendrik.johannes@gmail.com>

Author: jjohannes

src/main/kotlin/org.hiero.gradle.check.spotless.gradle.kts

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: Apache-2.0
+import com.diffplug.spotless.LineEnding
 import org.hiero.gradle.environment.EnvAccess
 
 plugins {
@@ -7,6 +8,9 @@ plugins {
 }
 
 spotless {
+    // Improve configuration cache behavior by using stable line endings
+    // https://github.com/gradle/gradle/issues/25469#issuecomment-3444231151
+    lineEndings = LineEnding.UNIX
     if (EnvAccess.isGitRepositoryWithMainBranch(layout.projectDirectory, providers)) {
         // limit format enforcement to just the files changed by this feature branch
         ratchetFrom("origin/main")