Build/Test Tools: Update the caniuse browser data and regenerate CSS.

This includes three minor updates to generated CSS files:

- A single `-webkit-` prefix is removed for `min-width`, which was required for Safari <= 10.1 (0.06% total global usage). WordPress only supports the last two versions.
- 2 instances where the `-o-` prefix are added for `tab-size`. This appears to be for Opera Mobile, which has creeped back over the 1% global usage.

Props peterwilsoncc, jorbin.
Fixes #53686.

git-svn-id: https://develop.svn.wordpress.org/trunk@51456 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/css/common.css

@@ -3153,6 +3153,7 @@ img {
 	font-size: 13px;
 	background: #f6f7f7;
 	-moz-tab-size: 4;
+	-o-tab-size: 4;
 	tab-size: 4;
 }
 

src/wp-admin/css/customize-controls.css

@@ -1578,6 +1578,7 @@ p.customize-section-description {
 	font-size: 12px;
 	padding: 6px 8px;
 	-moz-tab-size: 2;
+	-o-tab-size: 2;
 	tab-size: 2;
 }
 .customize-control-code_editor textarea,