fix(deps): update aws-cdk monorepo to ^2.168.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
aws-cdk-lib (source)	^2.167.2 -> ^2.168.0
cdk (source)	2.167.2 -> 2.168.0

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Release Notes

aws/aws-cdk (aws-cdk-lib)

v2.168.0

Compare Source

Features

• cloudfront: function URL origin access control L2 construct (#​31339) (b8f47c8), closes #​31629
• elasticloadbalancingv2: support target group level cross-zone settings for ALB and NLB (#​31814) (6b0b1e1), closes #​31790
• lambda: add NodeJS 22.x support (#​32104) (baa8561)
• lambda: support observability for ESM ( DDB, Kinesis, SQS) (#​32204) (6317a2a)
• lambda-destinations: support Lambda async S3 destination (#​31709) (e1a2f68)
• ses: maximum delivery time for emails (#​32102) (771eeff)
• update L1 CloudFormation resource definitions (#​32175) (6820c62)
• rds: support 8.0.40 engine version for RDS for MySQL (#​32117) (dcb5cf1)
• stepfunctions-tasks: create scheduler (#​29458) (d14a01c), closes #​29351

Bug Fixes

• cdk: remove source-map-support from typescript init templates (#​32113) (d5c0aa2), closes #​20754 #​30231
• cdk: use built-in source map support (#​32115) (5d499dc)
• cli: cdk diff always falls back to template only diff (#​32165) (089e9d8)
• cli: excessive stack event polling during deployment (#​32196) (a8bc46d), closes /github.com/aws/aws-cdk/blob/7bb9203eb95fe894c0d40942ff49c782a9fec251/packages/aws-cdk/lib/api/util/cloudformation/stack-event-poller.ts#L73-L74
• cli: externally managed stack notification arns are deleted on deploy (#​32163) (9966f57)
• cli: failure to get credentials when session token is not set (#​32134) (9ef4e72)
• cli: region specified in ~/.aws/credentials is ignored (#​32133) (d1b3c81), closes #​32130
• cli: the LoadBalancerProvider doesn't match LBs when querying by a subset of tags (#​32164) (f75dc72)
• eks: eks.AccessEntryType.STANDARD maps to a wrong value (#​31147) (1bbb456)

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Alpha modules (2.168.0-alpha.0)

Bug Fixes

• scheduler-targets-alpha: imported target resources as schedule target throws synth error (#​32105) (1a8306f), closes #​31785 /github.com/aws/aws-cdk/pull/29615#issuecomment-2417858246
• scheduler-targets-alpha: kinesis data firehose target uses l1 instead of l2 (#​32150) (11384f0), closes #​31785
• scheduler-targets-alpha: scope down permissions for sqs and kinesis stream targets (#​32122) (6bb142e), closes #​31785

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