Prepare release jakarta.el:jakarta.el-api:6.1.0-M1

api/pom.xml

diff --git a/api/pom.xml b/api/pom.xml
index 7797c81..1c9f8b5 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -30,7 +30,7 @@
 
     <groupId>jakarta.el</groupId>
     <artifactId>jakarta.el-api</artifactId>
-    <version>6.1.0-SNAPSHOT</version>
+    <version>6.1.0-M1</version>
     <packaging>jar</packaging>
 
     <name>Jakarta Expression Language API</name>

tck/pom.xml

diff --git a/tck/pom.xml b/tck/pom.xml
index fb0e76b..6156945 100644
--- a/tck/pom.xml
+++ b/tck/pom.xml
@@ -54,7 +54,7 @@
         <dependency>
             <groupId>jakarta.el</groupId>
             <artifactId>jakarta.el-api</artifactId>
-            <version>6.1.0-SNAPSHOT</version>
+            <version>6.1.0-M1</version>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>