Fast forward pipeline changes 2.

Prevent JS Execution on Pre-login OAUTH screen (mattermost#17789) (ma…

…ttermost#17793)

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Automated cherry pick of mattermost#17789 (mattermost#17794)

* Prevent JS Execution on Pre-login OAUTH screen  (mattermost#17789)

* Fixed invalid js execution

* Added data & vbscript

* Added javascript protocol in mixed case

* Updated the test

(cherry picked from commit e989ff0)

* Test case fix

Co-authored-by: Anurag Shivarathri <anurag6713@gmail.com>

Automated cherry pick of mattermost#17789 (mattermost#17795)

* Prevent JS Execution on Pre-login OAUTH screen  (mattermost#17789)

* Fixed invalid js execution

* Added data & vbscript

* Added javascript protocol in mixed case

* Updated the test

(cherry picked from commit e989ff0)

* Updated test case

* Lint fixes

* revert

Co-authored-by: Anurag Shivarathri <anurag6713@gmail.com>

Bump to 5.31.7 (mattermost#17770)

Co-authored-by: Mmbot <mmbot@mattermost>

Mattermost Server OAuth Flow Cross-Site Scripting (mattermost#17743) (m…

…attermost#17757)

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Mattermost Server OAuth Flow Cross-Site Scripting (mattermost#17743) (m…

…attermost#17759)

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Mattermost Server OAuth Flow Cross-Site Scripting (mattermost#17743) (m…

…attermost#17760)

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Mattermost Server OAuth Flow Cross-Site Scripting (mattermost#17743) (m…

…attermost#17761)

Automatic Merge

Mattermost Server OAuth Flow Cross-Site Scripting (mattermost#17743) (m…

…attermost#17758)

Automatic Merge