Align execution IDs with parent POM to avoid multiple executions

Signed-off-by: Mark Thomas <markt@apache.org>
diff --git a/api/pom.xml b/api/pom.xml
index 8bc141a..e55fa21 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -241,7 +241,7 @@
                 <version>3.1.1</version>
                 <executions>
                     <execution>
-                        <id>attach-api-javadocs</id>
+                        <id>attach-javadocs</id>
                         <goals>
                             <goal>jar</goal>
                         </goals>
diff --git a/spec/pom.xml b/spec/pom.xml
index 6d4ef07..7613d9d 100644
--- a/spec/pom.xml
+++ b/spec/pom.xml
@@ -105,7 +105,7 @@
                 <version>3.0.0-M3</version>
                 <executions>
                     <execution>
-                        <id>enforce</id>
+                        <id>enforce-maven</id>
                         <goals>
                             <goal>enforce</goal>
                         </goals>