Fix causes for failed release and polish release notes

Author: leonard84

build.gradle

@@ -13,8 +13,8 @@ description = "Spock Framework"
 
 ext {
   baseVersion = "2.1"
-  snapshotVersion = false
-  milestone = 1
+  snapshotVersion = true
+  milestone = 0
   variants = [2.5, 3.0]
   variant = System.getProperty("variant") as BigDecimal ?: variants.first()
   buildScan.tag "groovy-$variant"
@@ -383,6 +383,11 @@ nexusPublishing {
       password = System.getenv("SONATYPE_OSS_PASSWORD")
     }
   }
+  transitionCheckOptions {
+    // closing checks take some time so increase the retries
+    // total time is maxRetries(180) * delayBetween(10s) = 30m
+    maxRetries.set(180)
+  }
 }
 
 File script(String name) {

docs/release_notes.adoc

@@ -3,17 +3,27 @@
 include::include.adoc[]
 
 == 2.1-M1 (2021-11-12)
-- Add support for selecting individual iterations. Individual iterations can now be selected via their unique ID. https://github.com/spockframework/spock/pull/1376[#1376]
+
+
+=== Highlights
+
 - Add <<utilities.adoc#collection-conditions, collection conditions>> https://github.com/spockframework/spock/issues/1372[#1372]
+- Add support for selecting individual iterations via their unique ID (IDE support required). https://github.com/spockframework/spock/pull/1376[#1376]
+
+=== Breaking Changes
+
+- Add `data.` support to conditional extensions https://github.com/spockframework/spock/issues/1360[#1360].
+This replaces the  current behavior of accessing data variables without any prefix.
+See <<extensions.adoc#precondition_context, Precondition Context>> for more details.
+
+=== Misc
+
 - Add exception translation to JUnit4 Rules https://github.com/spockframework/spock/pull/1342[#1342]
 - Add option to omit feature name from iterations https://github.com/spockframework/spock/pull/1386[#1386]
 and add additional <<data_driven_testing.adoc#unroll_tokens, Special Tokens>> to unroll patterns.
 - Add optional reason to `@Requires` and `@IgnoreIf` https://github.com/spockframework/spock/pull/1362[#1362]
 - Add `shared.` support to conditional extensions https://github.com/spockframework/spock/pull/1359[#1359].
 See <<extensions.adoc#precondition_context, Precondition Context>> for more details.
-- Add `data.` support to conditional extensions https://github.com/spockframework/spock/issues/1360[#1360].
-This replaces the  current behavior of accessing data variables without any prefix.
-See <<extensions.adoc#precondition_context, Precondition Context>> for more details.
 
 - Set the owner for condition closures on spec annotations https://github.com/spockframework/spock/pull/1357[#1357]
 +

gradle/publishMaven.gradle

@@ -75,7 +75,7 @@ tasks.withType(AbstractPublishToMaven) {
 
 signing {
   sign(publishing.publications).each { task ->
-    task.onlyIf { gradle.taskGraph.hasTask(publish) }
+    task.onlyIf { gradle.taskGraph.hasTask(publishToSonatype) }
   }
 }