Bump @types/chai from 4.2.5 to 4.2.6 in /api_tests

Bumps [@types/chai](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/chai) from 4.2.5 to 4.2.6.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/chai)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

api_tests/package.json

@@ -17,7 +17,7 @@
     "dependencies": {
         "@iarna/toml": "^2.2.3",
         "@types/bitcoinjs-lib": "^5.0.0",
-        "@types/chai": "^4.2.5",
+        "@types/chai": "^4.2.6",
         "@types/chai-as-promised": "^7.1.2",
         "@types/chai-json-schema": "^1.4.5",
         "@types/chai-subset": "^1.3.3",

api_tests/yarn.lock

@@ -51,10 +51,10 @@
   dependencies:
     "@types/chai" "*"
 
-"@types/chai@*", "@types/chai@4", "@types/chai@^4.2.5":
-  version "4.2.5"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.5.tgz#f8da153ebbe30babb0adc9a528b9ad32be3175a2"
-  integrity sha512-YvbLiIc0DbbhiANrfVObdkLEHJksQZVq0Uvfg550SRAKVYaEJy+V70j65BVe2WNp6E3HtKsUczeijHFCjba3og==
+"@types/chai@*", "@types/chai@4", "@types/chai@^4.2.6":
+  version "4.2.6"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.6.tgz#a55625d151d9c7c7a0a95920632131d66480bce9"
+  integrity sha512-HF8faEUA4JurIm+68VaA2KedtZf5LYdXpQEAbIAN79DwWQbO82BNTksZgCH3UMqbZHXex9C6TrBfg7OUInRISQ==
 
 "@types/cookiejar@*":
   version "2.1.1"