GH Actions: ccache on macOS & Linux; sccache on Windows

Signed-off-by: Be <be@mixxx.org>

scripts/ci/dependencies.sh

@@ -18,6 +18,7 @@ elif [[ "${OSTYPE}" == darwin* ]]; then # macOS
     brew_packages=(
         bash # macOS ships with Bash v3 for licensing reasons so upgrade it now
         conan
+        ccache
     )
     brew install "${brew_packages[@]}"
 
@@ -41,10 +42,10 @@ else # Linux & others
             libgtk2.0-dev
             gettext
             python3-pip
+            ccache
         )
         sudo apt-get update -y
         sudo apt-get install -y --no-install-recommends "${apt_packages[@]}"
-        sudo apt-get remove -y ccache
     else
         echo >&2 "$0: Error: You don't have a recognized package manager installed."
         exit 1