add homebrew github actions

.github/workflows/update-homebrew-formula.yml

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+name: Update Homebrew Formula
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  update-formula:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out code
+      uses: actions/checkout@v2
+      with:
+        repository: 'therealpaulgg/homebrew-ssh-sync'
+        token: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Update Homebrew formula
+      run: |
+        # Example commands to update formula
+        # You'll need a script that updates your formula file with the new version and sha256
+        # This might involve downloading the release tarball, calculating its sha256, and updating the formula file accordingly
+        sh update_formula.sh
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Commit and push
+      run: |
+        git config --local user.email "[email protected]"
+        git config --local user.name "GitHub Action"
+        git commit -am "Update formula to version ${{ github.event.release.tag_name }}"
+        git push

.github/workflows/update_formula.sh

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+#!/bin/bash
+
+# Replace these variables with your actual data
+GITHUB_REPO="therealpaulgg/ssh-sync"  # Your GitHub username and repository name
+FORMULA_PATH="Formula/ssh-sync.rb"  # Path to your formula in the tap
+TAP_REPO="therealpaulgg/homebrew-ssh-sync"  # Your tap repository
+
+# Fetch the latest release data from GitHub
+LATEST_RELEASE=$(curl -s "https://api.github.com/repos/$GITHUB_REPO/releases/latest")
+
+# Extract the version and tarball URL from the release data
+VERSION=$(echo "$LATEST_RELEASE" | jq -r '.tag_name')
+TARBALL_URL=$(echo "$LATEST_RELEASE" | jq -r '.tarball_url')
+
+# Download the tarball and calculate its SHA256
+SHA256=$(curl -Ls $TARBALL_URL | shasum -a 256 | awk '{print $1}')
+
+# Update the formula with the new version and sha256
+sed -i "" "s|url \".*\"|url \"$TARBALL_URL\"|g" $FORMULA_PATH
+sed -i "" "s|sha256 \".*\"|sha256 \"$SHA256\"|g" $FORMULA_PATH