Separate bun from npm_and_yarn as an Independent Ecosystem

[kbukum1]

What are you trying to accomplish?

This PR separates bun from the npm_and_yarn ecosystem and establishes it as an independent ecosystem within Dependabot.

• What?

  • Introduces a dedicated dependabot-bun package.
  • Moves all bun-related logic from npm_and_yarn to a new structure under bun folder.
  • Updates dependencies to ensure dependabot-bun is built separately.

• Why?

  • We aim to maintain a one-to-one mapping between ecosystems and package managers instead of grouping multiple package managers under a single ecosystem.
  • This improves modularity, precision, and maintainability, making it easier to develop and manage updates for each package manager independently.

---

Anything you want to highlight for special attention from reviewers?

• This change ensures that dependabot-npm_and_yarn remains intact while bun is extracted.
• Future-proofing for further separation of npm, pnpm, and yarn is considered but not implemented yet.

---

How will you know you've accomplished your goal?

• dependabot-bun builds successfully as a standalone gem.
• Tests pass for Bun without affecting npm_and_yarn.
• The new Bun structure follows the existing Dependabot ecosystem architecture.

---

Checklist

• I have run the complete test suite to ensure all tests and linters pass.
• I have thoroughly tested my code changes, including additional tests for new functionality.
• I have written clear and descriptive commit messages.
• I have provided a detailed description of the changes in the pull request, including the problem it addresses and implementation details.
• I have ensured that the code is well-documented and easy to understand.

[markhallen]

We successfully ran:

./bin/docker-dev-shell bun --rebuild, and

./bin/dry-run.rb bun dsp-testing/dependabot-bun-public --updater-options=enable_bun_ecosystem --enable-beta-ecosystems

Dry run output

 => bump @types/bun from 1.1.16 to 1.2.2

  ± bun.lock
  ~~~
  --- /tmp/original20250212-673-tax0if        2025-02-12 10:20:52.844631126 +0000
  +++ /tmp/updated20250212-673-whgf1u 2025-02-12 10:20:52.844631126 +0000
  @@ -18,7 +18,7 @@
       },
     },
     "packages": {
  -    "@types/bun": ["@types/[email protected]", "", { "dependencies": { "bun-types": "1.1.43" } }, "sha512-E+ue6NMcn4FXC5bDRE1W/BXUVs01h5Mt02qH8/8HGCox9akuh8KNOFdwvaQS9TDgT2RmUyJYFRRqA60WtTnm2g=="],
  +    "@types/bun": ["@types/[email protected]", "", { "dependencies": { "bun-types": "1.2.2" } }, "sha512-tr74gdku+AEDN5ergNiBnplr7hpDp3V1h7fqI2GcR/rsUaM39jpSeKH0TFibRvU0KwniRx5POgaYnaXbk0hU+w=="],
   
       "@types/node": ["@types/[email protected]", "", { "dependencies": { "undici-types": "~5.26.4" } }, "sha512-scnD59RpYD91xngrQQLGkE+6UrHUPzeKZWhhjBSa3HSkwjbQc38+q3RoIVEwxQGRw3M+j5hpNAM+lgV3cVormg=="],
   
  @@ -176,7 +176,7 @@
   
       "vary": ["[email protected]", "", {}, "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="],
   
  -    "@types/bun/bun-types": ["[email protected]", "", { "dependencies": { "@types/node": "~20.12.8", "@types/ws": "~8.5.10" } }, "sha512-W0wCtVH+bwFp7p3Zgs03CqxEDmXxEvmmUM/FBKgWIv9T8gyeotvIjIbHzuDScc2DphhRNtr7hJLCR5PspYL5qw=="],
  +    "@types/bun/bun-types": ["[email protected]", "", { "dependencies": { "@types/node": "*", "@types/ws": "~8.5.10" } }, "sha512-RCbMH5elr9gjgDGDhkTTugA21XtJAy/9jkKe/G3WR2q17VPGhcquf9Sir6uay9iW+7P/BV0CAHA1XlHXMAVKHg=="],
   
       "send/encodeurl": ["[email protected]", "", {}, "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w=="],
   
  ~~~
  3 insertions (+), 3 deletions (-)
🌍 Total requests made: '32'