chore(deps): update dependency dotenv to v16

Author: renovate[bot]

demo/package.json

@@ -8,7 +8,7 @@
     "dev": "gatsby develop"
   },
   "devDependencies": {
-    "dotenv": "10.0.0"
+    "dotenv": "16.4.0"
   },
   "dependencies": {
     "@chec/gatsby-source-chec": "*",

yarn.lock

@@ -4685,10 +4685,10 @@ dot-prop@^5.2.0:
   dependencies:
     is-obj "^2.0.0"
 
-dotenv@10.0.0:
-  version "10.0.0"
-  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-10.0.0.tgz#3d4227b8fb95f81096cdd2b66653fb2c7085ba81"
-  integrity sha512-rlBi9d8jpv9Sf1klPjNfFAuWDjKLwTIJJ/VxtoTwIR6hnZxcEOQCZg2oIL3MWBYw5GpUDKOEnND7LXTbIpQ03Q==
+dotenv@16.4.0:
+  version "16.4.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.4.0.tgz#ac21c3fcaad2e7832a1cd0c0e4e8e52225ecda0e"
+  integrity sha512-WvImr5kpN5NGNn7KaDjJnLTh5rDVLZiDf/YLA8T1ZEZEBZNEDOE+mnkS0PVjPax8ZxBP5zC5SLMB3/9VV5de9g==
 
 dotenv@^8.2.0:
   version "8.2.0"