add input trigger to use pkgcraft from git

Fixes #3.

action.yml

@@ -9,6 +9,10 @@ inputs:
     description: Path to ebuild repo
     required: false
     default: './'
+  git:
+    description: Use pkgcraft from git
+    required: false
+    default: 'false'
 
 runs:
   using: composite
@@ -29,8 +33,14 @@ runs:
       id: install
       shell: bash
       run: |
-        curl -sL https://github.com/pkgcraft/pkgcraft/releases/download/pkgcraft-tools-0.0.16/pkgcraft-tools-0.0.16-x86_64-unknown-linux-gnu.tar.xz | tar -Jxf - -C ~/.cargo/bin
-        curl -sL https://github.com/pkgcraft/pkgcraft/releases/download/pkgcruft-0.0.3/pkgcruft-0.0.3-x86_64-unknown-linux-gnu.tar.xz | tar -Jxf - -C ~/.cargo/bin
+        if [[ ${{ inputs.git }} == "true" ]]; then
+          cargo install pkgcraft-tools --git https://github.com/pkgcraft/pkgcraft.git
+          cargo install pkgcruft --git https://github.com/pkgcraft/pkgcraft.git
+        else
+          curl -sL https://github.com/pkgcraft/pkgcraft/releases/download/pkgcraft-tools-0.0.16/pkgcraft-tools-0.0.16-x86_64-unknown-linux-gnu.tar.xz | tar -Jxf - -C ~/.cargo/bin
+          curl -sL https://github.com/pkgcraft/pkgcraft/releases/download/pkgcruft-0.0.3/pkgcruft-0.0.3-x86_64-unknown-linux-gnu.tar.xz | tar -Jxf - -C ~/.cargo/bin
+        fi
+
         pk --version
         pkgcruft --version
         echo "pkgcraft-tools=$(pk --version)" >> $GITHUB_OUTPUT