vimPlugins: resolve github repository redirects

pkgs/misc/vim-plugins/generated.nix

@@ -8279,12 +8279,12 @@ let
     pname = "vimux";
     version = "2021-02-14";
     src = fetchFromGitHub {
-      owner = "ostera";
+      owner = "preservim";
       repo = "vimux";
       rev = "3693ec6f129fa10b1f3435829645c4607584c3ab";
       sha256 = "1pmcablswp2q32xc1njzfh5vxbani4a8n95k0jzhq0cz8w4ssxpw";
     };
-    meta.homepage = "https://github.com/ostera/vimux/";
+    meta.homepage = "https://github.com/preservim/vimux/";
   };
 
   vimwiki = buildVimPluginFrom2Nix {

pkgs/misc/vim-plugins/vim-plugin-names

@@ -433,7 +433,6 @@ Olical/aniseed
 Olical/conjure
 onsails/lspkind-nvim
 OrangeT/vim-csharp
-ostera/vimux
 osyo-manga/shabadou.vim
 osyo-manga/vim-anzu
 osyo-manga/vim-over
@@ -459,6 +458,7 @@ prabirshrestha/vim-lsp
 preservim/nerdcommenter
 preservim/nerdtree
 preservim/tagbar
+preservim/vimux
 psliwka/vim-smoothie
 ptzz/lf.vim
 puremourning/vimspector