feature: Use static binary instead of docker image (#75)

* feature: Use static binary instead of docker image

* Install in /usr/local/bin

* Remove --folder /repo

* Use tool-version when provided

* Quote strings in bash

action.yml

@@ -42,15 +42,23 @@ outputs:
 runs:
   using: "composite"
   steps:
+    - shell: bash
+      run: |
+        set -eo pipefail
+        if [ "${{ inputs.tool-version }}" = "latest" ]; then
+          download_url="$(curl -Ls https://api.github.com/repos/codacy/git-version/releases/latest | jq -r .assets[0].browser_download_url)"
+        else
+          download_url="https://github.com/codacy/git-version/releases/download/${{ inputs.tool-version }}/git-version"
+        fi
+        curl -Ls "$download_url" > /usr/local/bin/git-version
+        chmod +x /usr/local/bin/git-version
     - id: previous-version
       shell: bash
       run: |
         set -eo pipefail
 
-        export PREVIOUS_VERSION=$(docker run -v $(pwd):/repo codacy/git-version:${{ inputs.tool-version }} \
-          /bin/git-version \
+        export PREVIOUS_VERSION=$(git-version \
             --previous-version \
-            --folder /repo \
             --release-branch "${{ inputs.release-branch }}" \
             --dev-branch "${{ inputs.dev-branch }}" \
             --minor-identifier="${{ inputs.minor-identifier }}" \
@@ -64,9 +72,7 @@ runs:
       run: |
         set -eo pipefail
 
-        export VERSION=$(docker run -v $(pwd):/repo codacy/git-version:${{ inputs.tool-version }} \
-          /bin/git-version \
-            --folder /repo \
+        export VERSION=$(git-version \
             --release-branch "${{ inputs.release-branch }}" \
             --dev-branch "${{ inputs.dev-branch }}" \
             --minor-identifier="${{ inputs.minor-identifier }}" \