style: update styles

Author: github-actions[bot]

styles/github/assets/hb/modules/syntax-highlighting/scss/_style.scss

@@ -1,12 +1,12 @@
 /* Generated using: hugo gen chromastyles --style=github */
 
-/* Background */ .bg { background-color:#fff; }
-/* PreWrapper */ .chroma { background-color:#fff; }
+/* Background */ .bg { background-color:#f7f7f7; }
+/* PreWrapper */ .chroma { background-color:#f7f7f7; }
 /* Error */ .chroma .err { color:#f6f8fa;background-color:#82071e }
 /* LineLink */ .chroma .lnlinks { outline:none;text-decoration:none;color:inherit }
 /* LineTableTD */ .chroma .lntd { vertical-align:top;padding:0;margin:0;border:0; }
 /* LineTable */ .chroma .lntable { border-spacing:0;padding:0;margin:0;border:0; }
-/* LineHighlight */ .chroma .hl { background-color:#e5e5e5 }
+/* LineHighlight */ .chroma .hl { background-color:#dedede }
 /* LineNumbersTable */ .chroma .lnt { white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f }
 /* LineNumbers */ .chroma .ln { white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f }
 /* Line */ .chroma .line { display:flex; }

styles/tango/assets/hb/modules/syntax-highlighting/scss/_style.scss

@@ -84,4 +84,4 @@
 /* GenericSubheading */ .chroma .gu { color:#800080;font-weight:bold }
 /* GenericTraceback */ .chroma .gt { color:#a40000;font-weight:bold }
 /* GenericUnderline */ .chroma .gl { color:#000;text-decoration:underline }
-/* TextWhitespace */ .chroma .w { color:#f8f8f8;text-decoration:underline }
+/* TextWhitespace */ .chroma .w { color:#f8f8f8 }