docs: Remove GSOD project issue template

[lornajane]

What/Why/How?

We don't need this any more.

Check yourself

• Code changed? - Tested with redoc/reference-docs/workflows (internal)
• All new/updated code is covered with tests
• New package installed? - Tested in different environments (browser/node)

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7dfbaaf

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[github-actions]

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
redocly lint packages/core/src/benchmark/benches/rebilly.yaml	973.3 ± 26.8	947.7	1026.4	1.00 ± 0.04
redocly-next lint packages/core/src/benchmark/benches/rebilly.yaml	970.7 ± 28.3	947.8	1039.1	1.00

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	77.02%	4452/5780
🟡	Branches	67.5%	2463/3649
🟡	Functions	70.64%	741/1049
🟡	Lines	77.22%	4187/5422

Test suite run success

734 tests passing in 102 suites.

Report generated by 🧪jest coverage report action from 7dfbaaf