Apply pending Renovate dependency updates

[rubensworks]

Carries out the open Renovate major updates one-by-one, with linter and unit tests (including 100% coverage) passing after every commit.

Included commits

• Update Yarn to v4.18.0 (Update Yarn to v4.18.0 - autoclosed #137) — Yarn migrated .yarnrc.yml with explicit values for the new approvedGitRepositories, enableScripts and npmMinimalAgeGate settings to keep the current install behaviour, and bumped the lockfile to metadata version 10.
• Update dependency @typescript-eslint/typescript-estree to v8 (Update dependency @typescript-eslint/typescript-estree to v8 - autoclosed #130):
  • Import and export specifier names can now be string literals (arbitrary module namespace names), so their name is read via a helper.
  • TSLiteralType#literal no longer accepts null and regex literals, so enum initializers are cast when constructing literal types, and it can no longer be an update expression.
  • The parser now rejects interface A extends {} and Array<> as syntax errors, so the corresponding tests use B.C and Array instead.
• Update jest monorepo to v30 (Update jest monorepo to v30 - autoclosed #138) — Jest 30 reports branch coverage more accurately, which uncovered a few gaps: tests are added for named exports and export-alls from unresolvable packages, and the check on the implements clause of a class is removed, as it is always defined since typescript-estree v8.
• Update dependency rdf-object to v3 (Update dependency rdf-object to v3 - autoclosed #132) — the Resource types of rdf-object are only compatible with Components.js if both use the same rdf-object version, so componentsjs is bumped to ^6.4.0, the first version depending on rdf-object v3. This pulls in Comunica v4 via rdf-parse, whose type definitions refer to lru-cache v10, which is incompatible with the iterator types of recent TypeScript versions. As this is a type-only import in a types-only package, the lru-cache version of @comunica/types is resolved to v11, which is used throughout the rest of the tree anyway.

Not included

• Update actions/cache to v6 (Update actions/cache action to v6 #144) and update actions/setup-node to v7 (Update actions/setup-node action to v7 #146) — these were prepared and verified, but pushing changes to .github/workflows/ci.yml is not permitted for this session (no workflow scope). Those two Renovate PRs can be merged as-is.
• Update dependency typescript to v7 (Update dependency typescript to v7 #145) — explicitly left out.
• @types/lru-cache v7 (Update dependency @types/lru-cache to v7 - abandoned #93) and comment-parser v1 (Update dependency comment-parser to v1 - abandoned #54) — obsolete: @types/lru-cache is no longer a dependency and comment-parser is already at ^1.4.0. These PRs can be closed.