Dubbo 3.3 support compilation with jdk 1.8

[oxsean]

What is the purpose of the change

See: #13226

Brief changelog

Use maven profile activation to include module dubbo-config-spring6 only when the jdk version is >= 17.

Verifying this change

Compile successfully with jdk 1.8

Checklist

• Make sure there is a GitHub_issue field for the change (usually before you start working on it). Trivial changes like typos do not require a GitHub issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue.
• Each commit in the pull request should have a meaningful subject line and body.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Check if is necessary to patch to Dubbo 3 if you are work on Dubbo 2.7
• Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add sample in dubbo samples project.
• Add some description to dubbo-website project if you are requesting to add a feature.
• GitHub Actions works fine on your own branch.
• If this contribution is large, please follow the Software Donation Guide.

[codecov-commenter]

Codecov Report

Merging #13227 (8539ace) into 3.3 (027aba5) will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##                3.3   #13227   +/-   ##
=========================================
  Coverage     68.40%   68.40%           
  Complexity        8        8           
=========================================
  Files          1717     1717           
  Lines         70801    70801           
  Branches      10236    10236           
=========================================
+ Hits          48429    48431    +2     
  Misses        17690    17690           
+ Partials       4682     4680    -2     

see 34 files with indirect coverage changes

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[sonarcloud]

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