feat: relax dependency constraints for pymongo, elasticsearch, cachetools, and diskcache

Lower minimum versions based on compatibility research:
- pymongo: 4.15.0 → 4.0.0 (supports MongoDB 5.0+)
- elasticsearch: 9.0.0 → 8.0.0 (required for Elasticsearch 8.x)
- cachetools: 6.0.0 → 5.0.0 (stable API)
- diskcache: 5.6.0 → 5.0.0 (no breaking changes)

This provides broader compatibility while maintaining support for the
tested store versions.

Fixes #118

Co-authored-by: William Easton <[email protected]>

Author: github-actions[bot]

key-value/key-value-aio/pyproject.toml

@@ -32,14 +32,14 @@ py-key-value-shared = { workspace = true }
 py-key-value-shared-test = { workspace = true }
 
 [project.optional-dependencies]
-memory = ["cachetools>=6.0.0"]
-disk = ["diskcache>=5.6.0", "pathvalidate>=3.3.1",]
+memory = ["cachetools>=5.0.0"]
+disk = ["diskcache>=5.0.0", "pathvalidate>=3.3.1",]
 redis = ["redis>=4.3.0"]
-mongodb = ["pymongo>=4.15.0"]
+mongodb = ["pymongo>=4.0.0"]
 valkey = ["valkey-glide>=2.1.0"]
 vault = ["hvac>=2.3.0", "types-hvac>=2.3.0"]
 memcached = ["aiomcache>=0.8.0"]
-elasticsearch = ["elasticsearch>=9.0.0", "aiohttp>=3.12"]
+elasticsearch = ["elasticsearch>=8.0.0", "aiohttp>=3.12"]
 dynamodb = ["aioboto3>=13.3.0", "types-aiobotocore-dynamodb>=2.16.0"]
 keyring = ["keyring>=25.6.0"]
 keyring-linux = ["keyring>=25.6.0", "dbus-python>=1.4.0"]

key-value/key-value-sync/pyproject.toml

@@ -32,14 +32,14 @@ build-backend = "uv_build"
 module-name = "key_value.sync"
 
 [project.optional-dependencies]
-memory = ["cachetools>=6.0.0"]
-disk = ["diskcache>=5.6.0", "pathvalidate>=3.3.1",]
+memory = ["cachetools>=5.0.0"]
+disk = ["diskcache>=5.0.0", "pathvalidate>=3.3.1",]
 redis = ["redis>=4.3.0"]
-mongodb = ["pymongo>=4.15.0"]
+mongodb = ["pymongo>=4.0.0"]
 valkey = ["valkey-glide-sync>=2.1.0"]
 vault = ["hvac>=2.3.0", "types-hvac>=2.3.0"]
 memcached = ["aiomcache>=0.8.0"]
-elasticsearch = ["elasticsearch>=9.0.0", "aiohttp>=3.12"]
+elasticsearch = ["elasticsearch>=8.0.0", "aiohttp>=3.12"]
 pydantic = ["pydantic>=2.11.9"]
 keyring = ["keyring>=25.6.0"]
 keyring-linux = ["keyring>=25.6.0", "dbus-python>=1.4.0"]