CI Support (#5)

* First pass at README

* Add GitHub configs

* Action to bump version

* Test and release workflows

* Add handler instructions

* Add instructions for lambda

Author: mgacy

.github/actions/bump-version/README.md

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+# Bump Version
+
+A GitHub Action to bump a given version number.
+
+## Inputs
+
+```yaml
+inputs:
+  current-version:
+    description: The current semantic version number.
+    required: true
+  release-type:
+    description: Type of release. Must be one of `patch` | `minor` | `major`.
+    required: true
+```
+
+## Outputs
+
+```yaml
+outputs:
+  version:
+    description: The new version number.
+```
+
+## Example Usage
+
+```yaml
+name: Bump Version
+on:
+  workflow_dispatch:
+    inputs:
+      release_type:
+        description: Type of release
+        type: choice
+        required: true
+        options:
+          - patch
+          - minor
+          - major
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Git Checkout main
+        uses: actions/checkout@v4
+
+      - name: Get latest release version
+        id: get_current_version
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const { data: { tag_name } } = await github.rest.repos.getLatestRelease({
+              owner: context.repo.owner,
+              repo: context.repo.repo
+            })
+            return tag_name
+
+      - name: Bump version
+        id: bump
+        uses: ./.github/actions/bump-version
+        with:
+          bump-type: ${{ inputs.release_type }}
+          version: ${{ steps.get_current_version.outputs.result }}
+
+      - name: Push tag
+        uses: actions/github-script@v7
+        with:
+          script: |
+            github.rest.git.createRef({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              ref: 'refs/tags/${{ steps.bump.outputs.version }}',
+              sha: context.sha
+            })
+```
+
+## Acknowledgments
+
+Uses [semver-tool](https://github.com/fsaintjacques/semver-tool)

.github/actions/bump-version/action.yml

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+name: Bump Version
+description: Bumps a given version number.
+
+inputs:
+  current-version:
+    description: The current semantic version number.
+    required: true
+  release-type:
+    description: Type of release. Must be one of `patch` | `minor` | `major`.
+    required: true
+
+outputs:
+  version:
+    description: The new version number.
+    value: ${{ steps.bump.outputs.new-version }}
+
+runs:
+  using: composite
+  steps:
+    - name: Bump Version
+      id: bump
+      shell: bash
+      run: |
+        echo "new-version=$( ${{ github.action_path }}/semver.sh bump ${{ inputs.release-type }} ${{ inputs.current-version }} )" >> $GITHUB_OUTPUT