chore: bump spec version on graph init

[shiyasmohd]

With the release of graph-node version 0.37.0, the latest spec version is 1.3.0

[changeset-bot]

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Latest commit: 3ca74e7

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🚀 Snapshot Release (alpha)

The latest changes of this PR are available as alpha on npm (based on the declared changesets):

Package	Version	Info
@graphprotocol/graph-cli	0.96.1-alpha-20250306112928-3ca74e7bfb7ad2a5b5f4f96401cd93d0610e18ef	npm ↗︎ unpkg ↗︎