[PR #2141/52d39651 backport][stable-8] Tests - Replace use of db.t2 instance class

[patchback[bot]]

This is a backport of PR #2141 as merged into main (52d3965188d45841495c1721aaf1615d08d6874d).

SUMMARY

Amazon's dropping support for M4/R4/T2 RDS DB instances, replace their use in tests before something suddenly fails.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

rds

ADDITIONAL INFORMATION

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