fix not load application.yml bug & fix guava version conflict bug (Te…

…ncent#284)

fix:add junit test in config module. (Tencent#288)

Co-authored-by: lepdou <[email protected]>

fix not load application.yml bug & fix guava version conflict bug (Te…

…ncent#289)

fix not load application.yml bug & fix guava version conflict bug (Te…

…ncent#287)

Update CHANGELOG.md

release:release 1.5.2-2020.0.5. (Tencent#235)

Update CHANGELOG.md

release:release 1.5.2-Greenwich.SR6. (Tencent#224)

release:release 1.5.1-Hoxton.SR9. (Tencent#219)

release:release 1.4.3-2021.0.2.