feat(storage-node): support aws rds instance

[Xu-Wentao]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What this PR does / why we need it:

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
14 Code Smells

No Coverage information
0.0% Duplication

[codecov-commenter]

Codecov Report

Merging #342 (6ee75c0) into main (3f4177c) will increase coverage by 0.71%.
The diff coverage is 48.09%.

@@            Coverage Diff             @@
##             main     #342      +/-   ##
==========================================
+ Coverage   39.59%   40.30%   +0.71%     
==========================================
  Files          44       47       +3     
  Lines        4685     5019     +334     
==========================================
+ Hits         1855     2023     +168     
- Misses       2703     2858     +155     
- Partials      127      138      +11     

Impacted Files	Coverage Δ
...perator/pkg/controllers/compute_node_controller.go	6.72% <ø> (ø)
...e-operator/pkg/reconcile/storagenode/aws/aurora.go	0.00% <0.00%> (ø)
...here-operator/pkg/reconcile/storagenode/aws/aws.go	0.00% <0.00%> (ø)
...rator/pkg/reconcile/storagenode/aws/rdsinstance.go	16.00% <16.00%> (ø)
...ator/cmd/shardingsphere-operator/manager/option.go	46.36% <19.23%> (-5.33%)	⬇️
...perator/pkg/controllers/storage_node_controller.go	68.01% <67.43%> (+68.01%)	⬆️

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[mlycore]

#271