feat(foundryup): robustness checks and shell improvements

[sambacha]

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Motivation

foundryup is not robust.

make it robust.

Solution

sanity checks and etc.

check_bins_in_use

Introduces a new function, check_bins_in_use which makes sure that something like forge build -w isn't running.

fix check_cmd

also fixes check_cmd output

fix curl/wget

enforce TLS v1.2

[!NOTE] need_cmd curl actually would prevent wget from running, as the script would error out and there is no if/else logic to fail over to using wget anyway.

[sambacha]

really some testing of the scripts should be implemented, however after trying to get Docker container testing added, not willing to just yolo some tests into here

[grandizzy]

added process running check in https://github.com/foundry-rs/foundry/pull/9680

[sambacha]

added process running check in #9680

is valid bash

check_cmd() {
  command -v "$1" &>/dev/null
}

is not supported in dash (Ubuntu)

check_cmd() {
	command -v "$1" >/dev/null 2>&1
}