[2.2] Bump version to 2.2.1 (#438)

Run:
```
./mvnw versions:set -DnewVersion=2.2.1 -DgenerateBackupPoms=false -B
find . -type f -name "*.md" -exec sed -i -e "s+<version>[a-zA-Z0-9.-]*<\/version>+<version>2.2.1</version>+g" {} +
```

Signed-off-by: Pierangelo Di Pilato <[email protected]>

Author: pierDipi

amqp/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>io.cloudevents</groupId>
 		<artifactId>cloudevents-parent</artifactId>
-		<version>2.2.1-SNAPSHOT</version>
+		<version>2.2.1</version>
 	</parent>
 
 	<artifactId>cloudevents-amqp-proton</artifactId>

api/pom.xml

@@ -24,7 +24,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.2.1-SNAPSHOT</version>
+        <version>2.2.1</version>
     </parent>
 
     <artifactId>cloudevents-api</artifactId>

benchmarks/pom.xml

@@ -21,7 +21,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.2.1-SNAPSHOT</version>
+        <version>2.2.1</version>
     </parent>
 
     <artifactId>cloudevents-benchmarks</artifactId>

core/pom.xml

@@ -22,7 +22,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.2.1-SNAPSHOT</version>
+        <version>2.2.1</version>
     </parent>
 
     <artifactId>cloudevents-core</artifactId>

docs/amqp-proton.md

@@ -18,7 +18,7 @@ binding for CloudEvents:
 <dependency>
     <groupId>io.cloudevents</groupId>
     <artifactId>cloudevents-amqp-proton</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 </dependency>
 ```
 

docs/api.md

@@ -17,7 +17,7 @@ For Maven based projects, use the following dependency:
 <dependency>
     <groupId>io.cloudevents</groupId>
     <artifactId>cloudevents-api</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 </dependency>
 ```
 

docs/core.md

@@ -16,7 +16,7 @@ For Maven based projects, use the following dependency:
 <dependency>
     <groupId>io.cloudevents</groupId>
     <artifactId>cloudevents-core</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 </dependency>
 ```
 

docs/http-basic.md

@@ -27,7 +27,7 @@ HTTP Transport:
 <dependency>
     <groupId>io.cloudevents</groupId>
     <artifactId>cloudevents-http-basic</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 </dependency>
 ```
 

docs/http-jakarta-restful-ws.md

@@ -14,7 +14,7 @@ RESTful Web Services Binding:
 <dependency>
     <groupId>io.cloudevents</groupId>
     <artifactId>cloudevents-http-restful-ws</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 </dependency>
 ```
 

docs/http-vertx.md

@@ -14,7 +14,7 @@ HTTP Transport:
 <dependency>
     <groupId>io.cloudevents</groupId>
     <artifactId>cloudevents-http-vertx</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 </dependency>
 ```