Bump airtable from 0.6.0 to 0.7.2

Bumps [airtable](https://github.com/airtable/airtable.js) from 0.6.0 to 0.7.2.
- [Release notes](https://github.com/airtable/airtable.js/releases)
- [Changelog](https://github.com/Airtable/airtable.js/blob/master/CHANGELOG.md)
- [Commits](Airtable/airtable.js@v0.6.0...v0.7.2)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "adaptivecards": "^1.1.3",
-    "airtable": "^0.6.0",
+    "airtable": "^0.7.2",
     "botbuilder": "^4.3.4",
     "botbuilder-azure": "^4.3.4",
     "botbuilder-dialogs": "^4.3.4",