Bump sharp from 0.33.5 to 0.34.5

Bumps [sharp](https://github.com/lovell/sharp) from 0.33.5 to 0.34.5.
- [Release notes](https://github.com/lovell/sharp/releases)
- [Commits](https://github.com/lovell/sharp/compare/v0.33.5...v0.34.5)

---
updated-dependencies:
- dependency-name: sharp
  dependency-version: 0.34.5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Closes #120

Change-Id: Ib93788adf95d39745c67f332bbb2d6753c8648f0
diff --git a/package.json b/package.json
index 0cc12bb..b451b6e 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "puppeteer": "^24.35.0",
     "puppeteer-extra": "^3.3.6",
     "puppeteer-extra-plugin-user-preferences": "^2.4.1",
-    "sharp": "^0.33.0",
+    "sharp": "^0.34.5",
     "slack-notify": "^2.0.7"
   }
 }
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