feat: Replace paru with yay

Paru has not been updated in months and is incompatible with the current
version of pacman / libalpm, which is v16.0.0. See upstream issue [1].

Replace paru with yay so the action works again.

Also updated CI test with latest Spotify as the old version is gone now.

[1] https://github.com/Morganamilo/paru/issues/1454

entrypoint.sh

@@ -76,11 +76,11 @@ if [[ $INPUT_NAMCAP == true ]]; then
     echo "::endgroup::"
 fi
 
-# Install depends using paru from aur
+# Install depends using yay from aur
 if [[ $INPUT_AUR == true ]]; then
-    echo "::group::Installing depends using paru"
+    echo "::group::Installing depends using yay"
     source PKGBUILD
-    paru -Syu --removemake --needed --noconfirm "${depends[@]}" "${makedepends[@]}"
+    yay -Syu --removemake --needed --noconfirm "${depends[@]}" "${makedepends[@]}"
     echo "::endgroup::"
 fi