Resolve "noop_method_call" warnings for rust 1.73+

[who-biz]

• Rust compiler added warnings to noop method calls (redundant calls that do nothing)
• These changes take rust compiler recommendations and accomodate them to silence warnings

Compiler output prior to these changes is as follows:

warning: call to `.clone()` on a reference in this situation does nothing
   --> servers/src/epic/server.rs:188:26
    |
188 |         fs::create_dir_all(path.clone())?;
    |                                ^^^^^^^^ help: remove this redundant call
    |
    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
    = note: `#[warn(noop_method_call)]` on by default

warning: call to `.clone()` on a reference in this situation does nothing
   --> config/src/config.rs:247:17
    |
247 |   ...                   .unwrap()
    |  ________________________________^
248 | | ...                   .clone(),
    | |______________________________^ help: remove this redundant call
    |
    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
    = note: `#[warn(noop_method_call)]` on by default

warning: call to `.clone()` on a reference in this situation does nothing
   --> src/bin/epic.rs:103:56
    |
103 |         let url = taxes_args.value_of("from_wallet").unwrap().clone();
    |                                                              ^^^^^^^^ help: remove this redundant call
    |
    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
    = note: `#[warn(noop_method_call)]` on by default

These warnings are now resolved.