redix 0.11.0 doesn't support 1.6, so use 0.10.x in CI

mix.lock

@@ -19,7 +19,7 @@
   "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm", "5c040b8469c1ff1b10093d3186e2e10dbe483cd73d79ec017993fb3985b8a9b3"},
   "poison": {:hex, :poison, "2.1.0", "f583218ced822675e484648fa26c933d621373f01c6c76bd00005d7bd4b82e27", [:mix], [], "hexpm", "002caaf939b97c84533ef0f621d3ed414ed703fcd03c91ec0dd62043df102c63"},
   "ranch": {:hex, :ranch, "1.7.0", "9583f47160ca62af7f8d5db11454068eaa32b56eeadf984d4f46e61a076df5f2", [:rebar3], [], "hexpm", "59f7501c3a56125b2fc5684c3048fac9d043c0bf4d173941b12ca927949af189"},
-  "redix": {:hex, :redix, "0.11.2", "f6c696928bc0c81f9a04ea53299c353f7552ae3f4c5d1e884f3a6257098b9d66", [:mix], [{:castore, "~> 0.1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ae74e25026c4a0d17cad3c12814b313b28ac4277f3725220ae1df2f96320c38d"},
+  "redix": {:hex, :redix, "0.10.2", "a9eabf47898aa878650df36194aeb63966d74f5bd69d9caa37babb32dbb93c5d", [:mix], [{:telemetry, "~> 0.4.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "251b329893b8f6bb115fc0e30df7f12ee641b1e4547d760cf0909416a209f9bd"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], [], "hexpm", "4f8805eb5c8a939cf2359367cb651a3180b27dfb48444846be2613d79355d65e"},
   "telemetry": {:hex, :telemetry, "0.4.2", "2808c992455e08d6177322f14d3bdb6b625fbcfd233a73505870d8738a2f4599", [:rebar3], [], "hexpm", "2d1419bd9dda6a206d7b5852179511722e2b18812310d304620c7bd92a13fcef"},
 }