feat: add new version of PG, restrict PG version change

[shestakoven]

No description provided.

[Copilot]

Pull request overview

This PR updates the CLI to support the newer @subsquid/manifest version and adds a deploy-time guard that prevents changing an existing squid’s Postgres major version unless --hard-reset is explicitly used.

Changes:

• Bump @subsquid/manifest to ^2.1.3 (and update lockfile) and bump CLI version to 3.3.4.
• Add a deploy blocker that errors when the manifest’s Postgres version differs from the currently deployed manifest’s version unless --hard-reset is set.
• Add unit tests for the Postgres version mismatch detection helper.

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

File	Description
package.json	Bumps CLI version and updates @subsquid/manifest dependency to ^2.1.3.
yarn.lock	Locks @subsquid/manifest resolution to 2.1.3.
src/commands/deploy.ts	Adds Postgres version mismatch detection + deploy-time blocker requiring --hard-reset.
src/commands/deploy.unit.spec.ts	Adds unit coverage for getPostgresVersionMismatch.

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