Use local path to action for CI

.github/workflows/main.yaml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - uses: mtkennerly/dunamai-action@v1
+      - uses: .
         with:
           env-var: MY_VERSION
           args: --style semver
@@ -29,7 +29,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - uses: mtkennerly/dunamai-action@v1
+      - uses: .
         with:
           install: '1.2.0'
           env-var: MY_VERSION

README.md

@@ -3,6 +3,8 @@ This repository provides a GitHub Action that uses
 [Dunamai](https://github.com/mtkennerly/dunamai)
 to determine a dynamic version from your VCS tags.
 
+This requires access to Python in the workflow.
+
 ## Inputs
 * `install` (optional, default: `"latest"`):
   Version of Dunamai to install (e.g., "1.3.0").