scaffold Task cannot be used for new versions of existing packages with the same name in git

[linghengqian]

Describe the bug
A clear and concise description of what the bug is.

• scaffold Task cannot be used for new versions of existing packages with the same name in git.
• A simple example is com.mysql:mysql-connector-j:8.1.0.

To Reproduce
Steps to reproduce the behavior:

git clone git@github.com:oracle/graalvm-reachability-metadata.git
./gradlew scaffold --coordinates com.mysql:mysql-connector-j:8.1.0

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If possible please attach a complete reproducer here (either as a zip file or as a link to public repository/branch).

Expected behavior
A clear and concise description of what you expected to happen.

• No Error.

Logs
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$ ./gradlew scaffold --coordinates com.mysql:mysql-connector-j:8.1.0

> Configure project :
GraalVM Reachability Metadata TCK
---------------------------------

> Task :scaffold FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':scaffold'.
> Metadata for 'com.mysql:mysql-connector-j' already exists! Use --force to overwrite existing metadata

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1s
12 actionable tasks: 2 executed, 1 from cache, 9 up-to-date

System Info (please complete the following information):

• OS: [e.g. Windows] Ubuntu 22.04.3 LTS
• GraalVM Version [e.g. 22.0 CE] CE 17.0.8
• Java Version [e.g. 17] 17
• Plugin version [e.g. native-gradle-plugin:0.9.10] native-gradle-plugin:0.9.26

Additional context
Add any other context about the problem here.

• Early discussion is at Make ShardingSphere Proxy in GraalVM Native Image form available apache/shardingsphere#21347 .