OSV v1.0.0 is missing a canonical URL

[joshbuker]

Discovered this while discussing #132

Currently, the canonical url for the schema is:
https://raw.githubusercontent.com/ossf/osv-schema/v<SEMVER>/validation/schema.json

For example, 1.4.0 resolves to:
https://raw.githubusercontent.com/ossf/osv-schema/v1.4.0/validation/schema.json

1.0.0 is historically important due to schema_version being null is implied to be 1.0.0, however currently that 404s:
https://raw.githubusercontent.com/ossf/osv-schema/v1.0.0/validation/schema.json

This should be added or backported so that it is consistent and can be used by validators.

[andrewpollock]

Looks like this is a case of releasing https://github.com/ossf/osv-schema/releases/tag/1.0.0

[oliverchang]

I've made a v1.0.0 release and https://raw.githubusercontent.com/ossf/osv-schema/v1.0.0/validation/schema.json now works.

[puerco]

A v1.0.0 release always warrants one or more beers 🥂