deps(deps): update cachetools requirement from ^5.0 to ^6.2

Updates the requirements on [cachetools](https://github.com/tkem/cachetools) to permit the latest version.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](tkem/cachetools@v5.0.0...v6.2.2)

---
updated-dependencies:
- dependency-name: cachetools
  dependency-version: 6.2.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -21,7 +21,7 @@ authors = [{ name = "F. F. Martinez Gamo" }]
 python = "^3.10"
 # Minimal core - truly minimal for primality testing
 networkx = {version = "^2.6", optional = true}
-cachetools = {version = "^5.0", optional = true}
+cachetools = {version = "^6.2", optional = true}
 numpy = {version = "^1.24", optional = true}
 scipy = {version = "^1.9", optional = true}
 sympy = {version = "^1.10", optional = true}