treewide: fix /bin/coursier references

After https://github.com/NixOS/nixpkgs/pull/142254 coursier provides its
binary as /bin/cs rather than /bin/coursier

pkgs/development/compilers/scala-runners/default.nix

@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   dontBuild = true;
   installPhase = ''
     mkdir -p $out/bin $out/lib
-    sed -ie "s| cs | ${coursier}/bin/coursier |" scala-runner
+    sed -ie "s| cs | ${coursier}/bin/cs |" scala-runner
     cp scala-runner $out/lib
     ln -s $out/lib/scala-runner $out/bin/scala
     ln -s $out/lib/scala-runner $out/bin/scalac

pkgs/development/tools/build-managers/bloop/default.nix

@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
 
       mkdir channel
       ln -s ${bloop-coursier-channel} channel/bloop.json
-      ${coursier}/bin/coursier install --install-dir $out --install-platform ${platform} --default-channels=false --channel channel --only-prebuilt=true bloop
+      ${coursier}/bin/cs install --install-dir $out --install-platform ${platform} --default-channels=false --channel channel --only-prebuilt=true bloop
 
       # Remove binary part of the coursier launcher script to make derivation output hash stable
       sed -i '5,$ d' $out/bloop

pkgs/development/tools/metals/default.nix

@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     name = "${pname}-deps-${version}";
     buildCommand = ''
       export COURSIER_CACHE=$(pwd)
-      ${coursier}/bin/coursier fetch org.scalameta:metals_2.12:${version} \
+      ${coursier}/bin/cs fetch org.scalameta:metals_2.12:${version} \
         -r bintray:scalacenter/releases \
         -r sonatype:snapshots > deps
       mkdir -p $out/share/java

pkgs/development/tools/scalafix/default.nix

@@ -7,7 +7,7 @@ let
     name = "${baseName}-deps-${version}";
     buildCommand = ''
       export COURSIER_CACHE=$(pwd)
-      ${coursier}/bin/coursier fetch ch.epfl.scala:scalafix-cli_2.12.7:${version} > deps
+      ${coursier}/bin/cs fetch ch.epfl.scala:scalafix-cli_2.12.7:${version} > deps
       mkdir -p $out/share/java
       cp $(< deps) $out/share/java/
     '';

pkgs/development/tools/scalafmt/default.nix

@@ -7,7 +7,7 @@ let
     name = "${baseName}-deps-${version}";
     buildCommand = ''
       export COURSIER_CACHE=$(pwd)
-      ${coursier}/bin/coursier fetch org.scalameta:scalafmt-cli_2.13:${version} > deps
+      ${coursier}/bin/cs fetch org.scalameta:scalafmt-cli_2.13:${version} > deps
       mkdir -p $out/share/java
       cp $(< deps) $out/share/java/
     '';