Update dependency gatsby-theme-apollo-docs to v4.5.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
gatsby-theme-apollo-docs	dependencies	minor	4.4.3 -> 4.5.1

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Release Notes

apollographql/gatsby-theme-apollo

### [`v4.5.1`](https://togithub.com/apollographql/gatsby-theme-apollo/compare/gatsby-theme-apollo-docs@4.5.0...gatsby-theme-apollo-docs@4.5.1) [Compare Source](https://togithub.com/apollographql/gatsby-theme-apollo/compare/gatsby-theme-apollo-docs@4.5.0...gatsby-theme-apollo-docs@4.5.1) ### [`v4.5.0`](https://togithub.com/apollographql/gatsby-theme-apollo/compare/gatsby-theme-apollo-docs@4.4.3...gatsby-theme-apollo-docs@4.5.0) [Compare Source](https://togithub.com/apollographql/gatsby-theme-apollo/compare/gatsby-theme-apollo-docs@4.4.3...gatsby-theme-apollo-docs@4.5.0)

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