increase timeout #990

Job	Run time
static analysis (Elixir 1.15.x \| Erlang/OTP 25.x)	31s
mix test windows (Elixir 1.13.x \| Erlang/OTP 22.x)	7m 34s
mix test windows (Elixir 1.13.x \| Erlang/OTP 23.x)	8m 37s
mix test windows (Elixir 1.13.x \| Erlang/OTP 24.x)	7m 56s
mix test windows (Elixir 1.13.x \| Erlang/OTP 25.x)	5m 50s
mix test windows (Elixir 1.14.x \| Erlang/OTP 23.x)	9m 3s
mix test windows (Elixir 1.14.x \| Erlang/OTP 24.x)	6m 30s
mix test windows (Elixir 1.14.x \| Erlang/OTP 25.x)	7m 39s
mix test windows (Elixir 1.15.x \| Erlang/OTP 24.x)	7m 21s
mix test windows (Elixir 1.15.x \| Erlang/OTP 25.x)	9m 21s
mix test (Elixir 1.13.x \| Erlang/OTP 22.x)	8m 47s
mix test (Elixir 1.13.x \| Erlang/OTP 23.x)	10m 3s
mix test (Elixir 1.13.x \| Erlang/OTP 24.x)	6m 48s
mix test (Elixir 1.13.x \| Erlang/OTP 25.x)	5m 12s
mix test (Elixir 1.14.x \| Erlang/OTP 23.x)	1m 23s
mix test (Elixir 1.14.x \| Erlang/OTP 24.x)	9m 16s
mix test (Elixir 1.14.x \| Erlang/OTP 25.x)	5m 7s
mix test (Elixir 1.15.x \| Erlang/OTP 24.x)	6m 18s
mix test (Elixir 1.15.x \| Erlang/OTP 25.x)	5m 36s
	2h 8m 52s

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