chore: rename project from Powertools to Powertools for AWS Lambda (Java)

[sthulb]

Issue #, if available: #1168

Description of changes:

Located all references of Powertools/Lambda Powertools etc and updated to the new project name "Powertools for AWS Lambda"

Checklist

• Meet tenets criteria
• Update tests
• Update docs
• PR title follows conventional commit semantics

Breaking change checklist

RFC issue #:

• Migration process documented
• Implement warnings (if it can live side by side)

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[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (ea92257) 71.32% compared to head (ddd5929) 71.32%.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1169   +/-   ##
=========================================
  Coverage     71.32%   71.32%           
  Complexity      535      535           
=========================================
  Files            70       70           
  Lines          2239     2239           
  Branches        237      237           
=========================================
  Hits           1597     1597           
  Misses          529      529           
  Partials        113      113           

Impacted Files	Coverage Δ
.../cloudformation/AbstractCustomResourceHandler.java	100.00% <ø> (ø)
...zon/lambda/powertools/cloudformation/Response.java	100.00% <ø> (ø)
...tools/idempotency/internal/IdempotencyHandler.java	67.21% <0.00%> (ø)
...lambda/powertools/parameters/DynamoDbProvider.java	71.66% <ø> (ø)

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