Fix package version update script again (#316)

* Fix version bump in pubspec

* Updating package version

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: brandenfung2

.github/workflows/versionBump.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Get Latest pubspec.yaml
         run: | 
           git fetch 
-          git merge origin/master
+          git checkout origin/master pubspec.yaml
           git add pubspec.yaml
           git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git config --local user.name "github-actions[bot]"

pubspec.yaml

@@ -1,6 +1,6 @@
 name: pdftron_flutter
 description: A convenience wrapper to build Flutter apps that use the PDFTron mobile SDK for smooth, flexible, and stand-alone document viewing.
-version: 1.0.1-23
+version: 1.0.1-24
 homepage: https://www.pdftron.com
 repository: https://github.com/PDFTron/pdftron-flutter
 issue_tracker: https://github.com/PDFTron/pdftron-flutter/issues