[BUILD] Fix Import Abseil-cpp

[LeiZhang-Hunter]

…ink you can make a judgment when introducing abseil-cpp. If abseil is not introduced, then use find_package

Fixes # (issue)

Changes

Please provide a brief description of the changes here.

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: LeiZhang-Hunter / name: zhanglei (d6a678e)
• ✅ login: marcalff / name: Marc Alff (7e11404)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.68%. Comparing base (497eaf4) to head (7e11404).
Report is 80 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2701      +/-   ##
==========================================
+ Coverage   87.12%   87.68%   +0.56%     
==========================================
  Files         200      190      -10     
  Lines        6109     5851     -258     
==========================================
- Hits         5322     5130     -192     
+ Misses        787      721      -66     

see 79 files with indirect coverage changes

[lalitb]

LGTM. CI is failing for formatting, so need to be fixed before merging.

[marcalff]

LGTM, thanks for the fix.