Updating some dependencies

[Robpol86]

Keeping most stuff pinned to old versions. Dropped Python 3.8 support. macOS homebrew defaults to 3.9 so keeping that as the minimum.

New linter insists on new newline.

[github-actions]

Diff Against Old HTML

M  .buildinfo
M  _static/copybutton.js

--- a/.buildinfo
+++ b/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 5bffff798a97aca2d4895ee09422017e
+config: d212b59b5b8ad885b7b5aa28cfac61cc
 tags: 645f666f9bcd5a90fca523b33c5a78b7

Show 29 lines from copybutton.js

--- a/_static/copybutton.js
+++ b/_static/copybutton.js
@@ -18,11 +18,11 @@ const messages = {
     copy_success: "Kopiert!",
     copy_failure: "Fehler beim Kopieren",
   },
   fr: {
     copy: "Copier",
-    copy_to_clipboard: "Copié dans le presse-papier",
+    copy_to_clipboard: "Copier dans le presse-papier",
     copy_success: "Copié !",
     copy_failure: "Échec de la copie",
   },
   ru: {
     copy: "Скопировать",
@@ -235,11 +235,11 @@ const addCopyButtonToCodeCells = () => {
     var target = document.querySelector(
       trigger.attributes["data-clipboard-target"].value
     );
 
     // get filtered text
-    let exclude = ".linenos, .gp";
+    let exclude = ".linenos";
 
     let text = filterText(target, exclude);
     return formatCopyText(text, "", false, true, true, true, "", "");
   };