[ImgBot] Optimize images

*Total -- 439.73kb -> 384.71kb (12.51%)

/assets/ps_black_64.svg -- 5.60kb -> 3.47kb (38.01%)
/src/Microsoft.Management.UI.Internal/resources/Graphics/CloseTile16.png -- 0.99kb -> 0.71kb (28.21%)
/assets/Square150x150Logo.png -- 10.59kb -> 7.66kb (27.66%)
/assets/Avatar.svg -- 46.18kb -> 34.28kb (25.76%)
/tools/releaseBuild/azureDevOps/diagram.svg -- 24.54kb -> 19.40kb (20.93%)
/assets/Square150x150Logo-Preview.png -- 8.64kb -> 6.93kb (19.81%)
/test/powershell/Modules/Microsoft.PowerShell.Security/TestData/CatalogTestData/TestImage.gif -- 4.68kb -> 3.80kb (18.77%)
/docs/testing-guidelines/Images/AzDevOps-Success.png -- 2.54kb -> 2.06kb (18.76%)
/assets/wix/WixUIBannerBmp.png -- 3.76kb -> 3.11kb (17.35%)
/assets/StoreLogo-Preview.png -- 3.49kb -> 2.97kb (14.84%)
/assets/Chibi_Avatar.png -- 271.08kb -> 246.70kb (8.99%)
/assets/Square44x44Logo.targetsize-48_altform-unplated-Preview.png -- 2.25kb -> 2.07kb (8.28%)
/assets/Square44x44Logo-Preview.png -- 2.25kb -> 2.07kb (8.28%)
/assets/Square44x44Logo.targetsize-48-Preview.png -- 2.25kb -> 2.07kb (8.28%)
/assets/ps_black_128.svg -- 2.92kb -> 2.68kb (8.2%)
/assets/wix/WixUIDialogBmp.png -- 30.08kb -> 27.66kb (8.05%)
/src/Microsoft.Management.UI.Internal/resources/Graphics/Save16.png -- 0.59kb -> 0.54kb (7.93%)
/assets/powershell_128.svg -- 2.55kb -> 2.36kb (7.46%)
/assets/av_colors_128.svg -- 3.09kb -> 2.88kb (6.7%)
/assets/wix/WixUIInfoIco.png -- 1.60kb -> 1.52kb (5.07%)
/assets/avatar_128.svg -- 6.93kb -> 6.71kb (3.25%)
/assets/ps_fluent_design_384.svg -- 3.12kb -> 3.05kb (2.16%)

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