fix: add context to custom function handler entrypoint, ref #9563

[josefaidt]

Description of changes

adds context argument to entrypoint handler, passes on to custom module handler

Issue #, if available

fixes #9563
ref #8102

Description of how you validated changes

Checklist

• PR description included
• yarn test passes
• Tests are changed or added

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

Merging #9741 (2916c2d) into master (4a87373) will increase coverage by 0.06%.
The diff coverage is 34.45%.

@@            Coverage Diff             @@
##           master    #9741      +/-   ##
==========================================
+ Coverage   52.93%   52.99%   +0.06%     
==========================================
  Files         829      830       +1     
  Lines       45865    45992     +127     
  Branches     9789     9823      +34     
==========================================
+ Hits        24279    24374      +95     
- Misses      19581    19600      +19     
- Partials     2005     2018      +13     

Impacted Files	Coverage Δ
...service-walkthroughs/execPermissionsWalkthrough.ts	71.22% <ø> (+0.50%)	⬆️
...mplify-category-notifications/lib/channel-Email.js	0.00% <0.00%> (ø)
...lify-category-notifications/lib/pinpoint-helper.js	0.00% <0.00%> (ø)
...ckages/amplify-cli-core/src/customPoliciesUtils.ts	87.09% <ø> (ø)
...amplify-cli-core/src/feature-flags/featureFlags.ts	80.83% <ø> (ø)
...-transformer/src/graphql-searchable-transformer.ts	93.43% <ø> (ø)
...c/extensions/amplify-helpers/auth-notifications.ts	28.18% <28.18%> (ø)
...ator/src/server/subscription/mqtt-server/client.ts	8.57% <33.33%> (ø)
...l-auth-transformer/src/graphql-auth-transformer.ts	89.62% <50.00%> (ø)
...dformation/src/utils/consolidate-apigw-policies.ts	67.82% <78.57%> (+49.80%)	⬆️
... and 5 more

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[github-actions]

👋 Hi, this pull request was referenced in the v7.6.22 release!

Check out the release notes here https://github.com/aws-amplify/amplify-cli/releases/tag/v7.6.22.