build(deps): bump nebulex from 2.6.3 to 2.6.4

Bumps [nebulex](https://github.com/cabol/nebulex) from 2.6.3 to 2.6.4.
- [Release notes](https://github.com/cabol/nebulex/releases)
- [Changelog](https://github.com/cabol/nebulex/blob/master/CHANGELOG.md)
- [Commits](cabol/nebulex@v2.6.3...v2.6.4)

---
updated-dependencies:
- dependency-name: nebulex
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

mix.lock

@@ -55,7 +55,7 @@
   "mint_web_socket": {:hex, :mint_web_socket, "1.0.3", "aab42fff792a74649916236d0b01f560a0b3f03ca5dea693c230d1c44736b50e", [:mix], [{:mint, ">= 1.4.1 and < 2.0.0-0", [hex: :mint, repo: "hexpm", optional: false]}], "hexpm", "ca3810ca44cc8532e3dce499cc17f958596695d226bb578b2fbb88c09b5954b0"},
   "mnesiac": {:hex, :mnesiac, "0.3.14", "5ea3f1f3e615073629d0822bcf2297be73149beee2d1f7e482c1943894f59b53", [:mix], [{:libcluster, "~> 3.3", [hex: :libcluster, repo: "hexpm", optional: true]}], "hexpm", "e51b38bf983b9320aba56d5dce79dbf50cbff07f7495e70b89eb45461b8d32fa"},
   "myxql": {:hex, :myxql, "0.7.1", "7c7b75aa82227cd2bc9b7fbd4de774fb19a1cdb309c219f411f82ca8860f8e01", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:geo, "~> 3.4", [hex: :geo, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "a491cdff53353a09b5850ac2d472816ebe19f76c30b0d36a43317a67c9004936"},
-  "nebulex": {:hex, :nebulex, "2.6.3", "78af348ed9f8a338871b41e0b6de718c1808e627ce03fbe86598cbda2bdda2f5", [:mix], [{:decorator, "~> 1.4", [hex: :decorator, repo: "hexpm", optional: true]}, {:shards, "~> 1.1", [hex: :shards, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "09cdcbb62f8463ffcec7cae4936425ce91e25d92a6cd37e48b5dda7c851958d5"},
+  "nebulex": {:hex, :nebulex, "2.6.4", "4b00706e0e676474783d988962abf74614480e13c0a32645acb89bb32b660e09", [:mix], [{:decorator, "~> 1.4", [hex: :decorator, repo: "hexpm", optional: true]}, {:shards, "~> 1.1", [hex: :shards, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "25bdabf3fb86035c8151bba60bda20f80f96ae0261db7bd4090878ff63b03581"},
   "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.0", "51f9b613ea62cfa97b25ccc2c1b4216e81df970acd8e16e8d1bdc58fef21370d", [:mix], [], "hexpm", "9c565862810fb383e9838c1dd2d7d2c437b3d13b267414ba6af33e50d2d1cf28"},
   "nimble_pool": {:hex, :nimble_pool, "1.1.0", "bf9c29fbdcba3564a8b800d1eeb5a3c58f36e1e11d7b7fb2e084a643f645f06b", [:mix], [], "hexpm", "af2e4e6b34197db81f7aad230c1118eac993acc0dae6bc83bac0126d4ae0813a"},