Update cadence code for 1.0 · Outblock/fcl-swift@f74f5d3

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions uses Node.js version which is deprecated and will be forced to run on node20: actions/checkout@v2. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Unused Optional Binding Violation: Prefer `!= nil` over `let _ =` (unused_optional_binding)

Redundant Optional Initialization Violation: Initializing an optional variable with nil is redundant (redundant_optional_initialization)

Trailing Whitespace Violation: Lines should not have trailing whitespace (trailing_whitespace)

Opening Brace Spacing Violation: Opening braces should be preceded by a single space and on the same line as the declaration (opening_brace)

Opening Brace Spacing Violation: Opening braces should be preceded by a single space and on the same line as the declaration (opening_brace)

Line Length Violation: Line should be 250 characters or less; currently it has 277 characters (line_length)

Line Length Violation: Line should be 250 characters or less; currently it has 364 characters (line_length)

Line Length Violation: Line should be 250 characters or less; currently it has 353 characters (line_length)

Opening Brace Spacing Violation: Opening braces should be preceded by a single space and on the same line as the declaration (opening_brace)

Unused Optional Binding Violation: Prefer `!= nil` over `let _ =` (unused_optional_binding)

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