Bump codeigniter/framework from 3.1.7 to 3.1.9

[dependabot[bot]]

Bumps codeigniter/framework from 3.1.7 to 3.1.9.

Commits

• 30e2eaf [ci skip] 3.1.9 release
• a9da3dd [ci skip] Prepare 3.1.9 release
• 4d3fea4 [ci skip] Add a changelog entry for PR #5510
• 32f8c93 Merge pull request #5510 from johndekroon/develop
• 6ec8737 [ci skip] Update upgrade instructions for PR #5512
• 246a9fa [ci skip] Merge pull request #5512 from gxgpet/develop
• d248db4 [ci skip] Add changelog entry for #5516
• aa27dc0 Merge pull request #5516 from wpyh/patch-1
• 8cf7d86 [ci skip] Close #5487
• 577e53f Fix test_like_set_side() unit test (dataProvider wasn't working)
• Additional commits viewable in compare view

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