Update file change parsing regex to also handle 'File addition: "<filename>"' format

Dependencies

• [2] WPIUUBJI Use URIs instead of string paths in changelog
• [3] 7A3NMQ6Q Show altered files instead of dependencies as children of changes in changelog
• [*] ZGMIJNFV Create pijul.ts for executing commands using the Pijul CLI

Change contents

• replacement in src/pijul.ts at line 311
  [3.1956]→[3.1956:2015](∅→∅)
  − const changePattern = /\d\.\s([A-Za-z]+)\sin\s(.*):/g;
  [3.1956]

  [2.1087]
  + // Big complicated regex needs to match both the 'Edit in src/repository.ts' format

  + // and the 'File addition: "yarn.lock" format.

  + const changePattern = /\d\.\s(?:(?:([A-Za-z]+)\sin\s)(.*):|(.*):\s"(\S+)")/g;
• replacement in src/pijul.ts at line 318
  [3.2126]→[2.1148:1189](∅→∅)
  − const [, operation, path] = match;
  [3.2126]

  [2.1189]
  + // Since their are two formats the operation and path can be in, there are four

  + // capture groups for two properties. These two statements take whichever is defined.

  + const operation = match[1] ?? match[3];

  + const path = match[2] ?? match[4];

  +