chore(deps-dev): update pydynamodb requirement from >=0.4.2 to >=0.8.2

Updates the requirements on [pydynamodb](https://github.com/passren/PyDynamoDB) to permit the latest version.
- [Release notes](https://github.com/passren/PyDynamoDB/releases)
- [Commits](https://github.com/passren/PyDynamoDB/compare/0.4.2...0.8.2)

---
updated-dependencies:
- dependency-name: pydynamodb
  dependency-version: 0.8.2
  dependency-type: direct:development
...

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

pyproject.toml

@@ -149,7 +149,7 @@ dremio = ["sqlalchemy-dremio>=1.2.1, <4"]
 drill = ["sqlalchemy-drill>=1.1.10, <2"]
 druid = ["pydruid>=0.6.5,<0.7"]
 duckdb = ["duckdb>=1.5.4,<2", "duckdb-engine>=0.17.0"]
-dynamodb = ["pydynamodb>=0.4.2"]
+dynamodb = ["pydynamodb>=0.8.2"]
 solr = ["sqlalchemy-solr >= 0.2.4.3"]
 elasticsearch = ["elasticsearch-dbapi>=0.2.13, <0.3.0"]
 exasol = ["sqlalchemy-exasol>=2.4.0, <8.0"]