Pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
dotenv	dependencies	pin	^8.2.0 -> 8.2.0
gatsby	dependencies	pin	^2.17.15 -> 2.17.15
gatsby-plugin-manifest	dependencies	pin	^2.2.28 -> 2.2.28
gatsby-plugin-react-helmet	dependencies	pin	^3.1.15 -> 3.1.15
gatsby-plugin-styled-components	dependencies	pin	^3.1.13 -> 3.1.13
gatsby-source-contentful	dependencies	pin	^2.1.59 -> 2.1.59
gatsby-source-filesystem	dependencies	pin	^2.1.37 -> 2.1.37
prettier (source)	devDependencies	pin	^1.19.1 -> 1.19.1
pretty-quick	devDependencies	pin	^2.0.1 -> 2.0.1
styled-components (source)	dependencies	pin	^4.4.1 -> 4.4.1

📌 Important: Renovate will wait until you have merged this Pin PR before creating any upgrade PRs for the affected packages. Add the preset :preserveSemverRanges your config if you instead don't wish to pin dependencies.

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Enabled.

♻️ Rebasing: Whenever PR is stale, or if you modify the PR title to begin with "rebase!".

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this PR, check this box

---

Newsflash: Renovate has joined WhiteSource, and is now free for all use. Learn more or view updated terms and privacy policies.