Use the AWS SDK backoff logic for backoff and jitter

[simonmarty]

• Update dependencies
• Close secret cache object in tests as suggested by linter.
• Use the AWS SDK exponential backoff logic

Issue #, if available:

Description of changes:

Updated the library to use Duration and Instant to represent time amounts.
The current backoff and retry logic has a long overflow bug here. This only comes into play if AWS Secrets Manager is inaccessible for hours at a time.
Switched the custom backoff and retry logic to backoff and jitter helpers provided by the AWS SDK for Java v2 which tops out the backoff at the SDK default of 20s. Added unit tests.

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

[codecov]

Codecov Report

❌ Patch coverage is 97.56098% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 99.15%. Comparing base (db8a853) to head (29947a5).

Files with missing lines	Patch %	Lines
...ecretsmanager/caching/cache/SecretCacheObject.java	94.11%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                 v2     #170      +/-   ##
============================================
+ Coverage     90.86%   99.15%   +8.28%     
- Complexity       90      101      +11     
============================================
  Files             6        6              
  Lines           230      237       +7     
  Branches         24       21       -3     
============================================
+ Hits            209      235      +26     
+ Misses           18        0      -18     
+ Partials          3        2       -1     

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[harsheejshah]

testing closing an object approving

[lohdipak]

Do we need this public? imo we can define this as private.

[simonmarty]

I made it match DEFAULT_CACHE_ITEM_TTL for backwards compatibility, that way if customers are using it they have a path forward.

[lohdipak]

Do we need this public? imo its used internally so we can make it private

[simonmarty]

I made it match DEFAULT_FORCE_REFRESH_JITTER for backwards compatibility, that way if customers are using it they have a path forward.