Make builds reproducible

Signed-off-by: Alexander Brandes <mc.cache@web.de>

Author: NotMyFault

README.md

@@ -26,7 +26,7 @@ repositories {
 }
 
 dependencies {
-    compileOnly("com.arcaniax:HeadDatabase-API:1.3.1")
+    compileOnly("com.arcaniax:HeadDatabase-API:1.3.2")
 }
 ```
 
@@ -36,7 +36,7 @@ dependencies {
 <dependency>
     <groupId>com.arcaniax</groupId>
     <artifactId>HeadDatabase-API</artifactId>
-    <version>1.3.1</version>
+    <version>1.3.2</version>
     <scope>provided</scope>
 </dependency>
 ```

build.gradle.kts

@@ -63,6 +63,12 @@ tasks {
             "implNote:a:Implementation Note:"
         )
         opt.links("https://jd.papermc.io/paper/1.20/")
+        opt.noTimestamp()
+    }
+
+    withType<AbstractArchiveTask>().configureEach {
+        isPreserveFileTimestamps = false
+        isReproducibleFileOrder = true
     }
 }
 
@@ -72,7 +78,7 @@ java {
 }
 
 signing {
-    if (!version.toString().endsWith("-SNAPSHOT")) {
+    if (!project.hasProperty("skip.signing") && !version.toString().endsWith("-SNAPSHOT")) {
         val signingKey: String? by project
         val signingPassword: String? by project
         useInMemoryPgpKeys(signingKey, signingPassword)