fix(gatsby-source-mongodb): sanitize name correctly

[harshil1712]

Description

This is the PR for issue #11277. It fixes the sanitizeName error.

Related Issues

Related to #11277

[DSchau]

Left a few comments. Thanks so much for the PR!

[harshil1712]

@DSchau thank you so much for the feedback! Working on it.

[harshil1712]

@DSchau may you please review the changes? Thank You.

[DSchau]

@harshil1712 can you merge upstream/master into this repo and then fix the merge conflict? Otherwise one of us can!

git fetch upstream master
git merge upstream/master

then fix the conflict in packages/gatsby-source-mongodb/src/gatsby-node.js

Thanks so much!

[harshil1712]

@DSchau I tried the steps. Please review it 😄

[harshil1712]

@DSchau the lodash library is being used. Please refer line 76 and 77

[harshil1712]

@DSchau I have made the changes as you suggested. Please review it. Thank you.

[wardpeet]

Updated and merged with master! Ready to merge!

Everything got handled :)

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