Replace more references to librsync

.github/workflows/ci.py

@@ -42,7 +42,7 @@ def install_deps():
         run('sudo apt-get update')
         run('sudo apt-get install -y libgl1-mesa-dev libxi-dev libxrandr-dev libxinerama-dev ca-certificates'
             ' libxcursor-dev libxcb-xkb-dev libdbus-1-dev libxkbcommon-dev libharfbuzz-dev libx11-xcb-dev zsh'
-            ' libpng-dev liblcms2-dev libfontconfig-dev libxkbcommon-x11-dev libcanberra-dev librsync-dev uuid-dev'
+            ' libpng-dev liblcms2-dev libfontconfig-dev libxkbcommon-x11-dev libcanberra-dev libxxhash-dev uuid-dev'
             ' zsh bash dash')
         # for some reason these directories are world writable which causes zsh
         # compinit to break

Brewfile

@@ -1,6 +1,6 @@
 brew "pkg-config"
 brew "zlib"
-brew "librsync"
+brew "xxhash"
 brew "python"
 brew "imagemagick"
 brew "harfbuzz"

shell.nix

@@ -13,7 +13,7 @@ mkShell rec {
     harfbuzzWithCoreText
     ncurses
     lcms2
-    librsync
+    xxhash
   ] ++ optionals stdenv.isDarwin [
     Cocoa
     CoreGraphics