treewide: fix redirected urls (run 3)

Related:
 - 9fc5e7e473
 - 593e11fd94
 - 508ae42a0f

Since the last time I ran this script, the Repology API changed, so I had to
adapt the script used in the previous PR. The new API should be more robust, so
overall this is a positive (no more grepping the error messages for our relevant
data but just a nice json structure).

Here's the new script I used:

```sh
curl https://repology.org/api/v1/repository/nix_unstable/problems \
   | jq -r '.[] | select(.type == "homepage_permanent_https_redirect") | .data | "s@\(.url)@\(.target)@"' \
   | sort | uniq | tee script.sed
find -name '*.nix' | xargs -P4 -- sed -f script.sed -i
```

I will also add this script to `maintainers/scripts`.

pkgs/data/fonts/lato/default.nix

@@ -3,7 +3,7 @@
 fetchzip {
   name = "lato-2.0";
 
-  url = "http://www.latofonts.com/download/Lato2OFL.zip";
+  url = "https://www.latofonts.com/download/Lato2OFL.zip";
 
   postFetch = ''
     mkdir -p $out/share/fonts
@@ -13,7 +13,7 @@ fetchzip {
   sha256 = "1amwn6vcaggxrd2s4zw21s2pr47zmzdf2xfy4x9lxa2cd9bkhvg5";
 
   meta = with lib; {
-    homepage = "http://www.latofonts.com/";
+    homepage = "https://www.latofonts.com/";
 
     description = ''
       Sans-serif typeface family designed in Summer 2010 by Łukasz Dziedzic