feat(semver-compare): add new Github action (#146)

This adds a new Github Action that semantically compares two versions, like 2.1.1 and 2.3.0 giving information about whether or the version is "higher" or "lower" than another version. The action exposes an output called `result` which will match the return type of the PHP [version_compare](https://www.php.net/manual/en/function.version-compare.php) function.

Currently, this action compares `version` against `compare_against` and returns:

- `-1` - if `version` is lower than `compare_against`
- `0` - if `version` is equal to `compare_against`
- `1` - if `version` is greater than `compare_against`

Co-authored-by: Vitaliy Golomoziy <vitaliy.golomoziy@gmail.com>

.github/workflows/_internal-semver-compare.yaml

@@ -0,0 +1,69 @@
+name: Test semvar-compare action
+
+on:
+  push:
+    branches:
+    - main
+    paths:
+    - ".github/workflows/_internal-semver-compare.yaml"
+    - "semver-compare/**"
+    - "!(**/*.md)"
+  pull_request:
+    branches:
+    - main
+    paths:
+    - ".github/workflows/_internal-semver-compare.yaml"
+    - "semver-compare/**"
+    - "!(**/*.md)"
+
+jobs:
+  semver-compare:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: ./semver-compare
+        id: version-compare-1
+        with:
+          version: 2.2.3
+          compare_against: 2.3
+
+      - uses: ./semver-compare
+        id: version-compare-2
+        with:
+          version: 2
+          compare_against: 2.0.1
+
+      - uses: ./semver-compare
+        id: version-compare-3
+        with:
+          version: 2.2.1
+          compare_against: 2.2
+
+
+      - uses: ./semver-compare
+        id: version-compare-4
+        with:
+          version: 2.2.0
+          compare_against: 2.2.0
+
+      - name: Fail if 2.3 is not higher than 2.2.3
+        if: steps.version-compare-1.outputs.result != -1
+        shell: bash
+        run: echo "FAIL because 2.3 must be higher than 2.2.3 Compare 2.2.3 to 2.3 renders ${{ steps.version-compare-1.outputs.result }}" && exit 1
+
+
+      - name: Fail if 2.0.1 is not higher than 2
+        if: steps.version-compare-2.outputs.result != -1
+        shell: bash
+        run: echo "FAIL because 2.0.1 must be higher than 2 Compare 2 to 2.0.1 renders ${{ steps.version-compare-2.outputs.result }}" && exit 1
+
+      - name: Fail if 2.2.1 is not higher than 2.2
+        if: steps.version-compare-3.outputs.result != 1
+        shell: bash
+        run: echo "FAIL because 2.2.1 must be higher than 2.2 Compare 2.2.1 to 2.2 renders ${{ steps.version-compare-3.outputs.result }}" && exit 1
+
+      - name: Fail if 2.2.0 is not equals to 2.2.0
+        if: steps.version-compare-4.outputs.result != 0
+        shell: bash
+        run: echo "FAIL because 2.2.0 must be equal to 2.2.0 Compare 2.2.0 to 2.2.0 renders ${{ steps.version-compare-4.outputs.result }}" && exit 1