build(deps): bump the infra group in /infra with 2 updates

Bumps the infra group in /infra with 2 updates: [aws-cdk-lib](https://github.com/aws/aws-cdk/tree/HEAD/packages/aws-cdk-lib) and [aws-cdk](https://github.com/aws/aws-cdk-cli/tree/HEAD/packages/aws-cdk).


Updates `aws-cdk-lib` from 2.261.0 to 2.262.1
- [Release notes](https://github.com/aws/aws-cdk/releases)
- [Changelog](https://github.com/aws/aws-cdk/blob/main/CHANGELOG.v2.alpha.md)
- [Commits](https://github.com/aws/aws-cdk/commits/v2.262.1/packages/aws-cdk-lib)

Updates `aws-cdk` from 2.1132.0 to 2.1133.0
- [Release notes](https://github.com/aws/aws-cdk-cli/releases)
- [Commits](https://github.com/aws/aws-cdk-cli/commits/aws-cdk@v2.1133.0/packages/aws-cdk)

---
updated-dependencies:
- dependency-name: aws-cdk-lib
  dependency-version: 2.262.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: infra
- dependency-name: aws-cdk
  dependency-version: 2.1133.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: infra
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yaml

@@ -55,7 +55,7 @@ jobs:
         working-directory: lambdas
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/setup-python@v7
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
       - name: Install dependencies

lambdas/aurora-pgvector-init/requirements.txt

@@ -1 +1 @@
-boto3>=1.43.56,<2.0
+boto3>=1.43.53,<2.0

lambdas/library-ingest/requirements.txt

@@ -1,2 +1,2 @@
-boto3>=1.43.56,<2.0
+boto3>=1.43.53,<2.0
 httpx>=0.28.1,<1.0

lambdas/pdf-extract/requirements.txt

@@ -1,3 +1,3 @@
 pdfplumber>=0.11.10,<1.0
-boto3>=1.43.56,<2.0
+boto3>=1.43.53,<2.0
 httpx>=0.28.1,<1.0

lambdas/pdf-generate/requirements.txt

@@ -1,3 +1,3 @@
 reportlab>=5.0.0,<6.0
-boto3>=1.43.56,<2.0
+boto3>=1.43.53,<2.0
 httpx>=0.28.1,<1.0

lambdas/suggestions/requirements.txt

@@ -1,2 +1,2 @@
-boto3>=1.43.56,<2.0
+boto3>=1.43.53,<2.0
 httpx>=0.28.1,<1.0