fix/mavenurl

[wangyb-A]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Issue Link, if available

Description

Fix maven url in pom

• We only set urls in parent POM before, flatten-pom-plugin will automatically append the artifact name in the URL, causing the url on maven to break.
• I added and field in child pom so that it will not be overriden by the plugin.
• This fix will take effect when next release is published to maven.
• For the url used in section, please refer to: https://maven.apache.org/pom.html#scm

Demo/Screenshots

N/A

Checklist

• I have filled out every section of the PR template
• I have thoroughly tested this change

Testing

mvn clean install

Manually verified that in the .flattened-pom.xml, we are using

    <url>https://github.com/aws/aws-durable-execution-sdk-java</url>

    <scm>
        <connection>scm:git:https://github.com/aws/aws-durable-execution-sdk-java.git</connection>
        <developerConnection>scm:git:https://github.com/aws/aws-durable-execution-sdk-java.git</developerConnection>
        <url>https://github.com/aws/aws-durable-execution-sdk-java</url>
    </scm>

Unit Tests

N/A

Integration Tests

N/A

Examples

N/A