Fix Validating any and anydata Returning from Resources

[ThisaruGuruge]

Purpose

Since GraphQL types are nominal, returning any or anydata from a resource does not mean anything. With this PR, the compiler plugin will throw an error when any or anydata is returned from a resource function.

Fixes: #1622

Examples

N/A

Checklist

• Linked to an issue
• Updated the changelog
• Added tests

[codecov]

Codecov Report

Merging #329 (8066b23) into master (8f69d9f) will not change coverage.
The diff coverage is n/a.

❗ Current head 8066b23 differs from pull request most recent head bc96e79. Consider uploading reports for the commit bc96e79 to get more accurate results

@@            Coverage Diff            @@
##             master     #329   +/-   ##
=========================================
  Coverage     93.64%   93.64%           
  Complexity      229      229           
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  Files            47       47           
  Lines          2125     2125           
  Branches        938      938           
=========================================
  Hits           1990     1990           
  Misses          121      121           
  Partials         14       14           

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[aashikam]

LGTM