Bump bl from 4.0.2 to 4.0.3 in /test

Bumps [bl](https://github.com/rvagg/bl) from 4.0.2 to 4.0.3.
- [Release notes](https://github.com/rvagg/bl/releases)
- [Commits](rvagg/bl@v4.0.2...v4.0.3)

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

Author: dependabot[bot]

test/yarn.lock

@@ -260,9 +260,9 @@ bitcore-mnemonic@^8.6.0:
     unorm "^1.4.1"
 
 bl@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-4.0.%3Cspan%20class="x x-first x-last">2.tgz#52b71e9088515d0606d9dd9cc7aa48dc1f98e73a"
-  integrity sha512-j4OH8f6Qg2bGuWfRiltT2HYGx0e1QcBTrK9KAHNMwMZdQnDZFk0ZSYIpADjYCB3U12nicC5tVJwSIhwOWjb4RQ==
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-4.0.%3Cspan%20class="x x-first x-last">3.tgz#12d6287adc29080e22a705e5764b2a9522cdc489"
+  integrity sha512-fs4G6/Hu4/EE+F75J8DuN/0IpQqNjAdC7aEQv7Qt8MHGUH7Ckv2MwTEEeN9QehD0pfIDkMI1bkHYkKy7xHyKIg==
   dependencies:
     buffer "^5.5.0"
     inherits "^2.0.4"
@@ -327,9 +327,9 @@ [email protected]:
     ieee754 "^1.1.4"
 
 buffer@^5.2.1, buffer@^5.5.0:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.%3Cspan%20class="x x-first x-last">5.0.tgz#9c3caa3d623c33dd1c7ef584b89b88bf9c9bc1ce"
-  integrity sha512-9FTEDjLjwoAkEwyMGDjYJQN2gfRgOKBKRfiglhvibGbpeeU/pQn1bJxQqm32OD/AIeEuHxU9roxXxg34Byp/Ww==
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.%3Cspan%20class="x x-first x-last">6.0.tgz#a31749dc7d81d84db08abf937b6b8c4033f62786"
+  integrity sha512-/gDYp/UtU0eA1ys8bOs9J6a+E/KWIY+DZ+Q2WESNUA0jFRsJOc0SNUO6xJ5SGA1xueg3NL65W6s+NY5l9cunuw==
   dependencies:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
@@ -1515,7 +1515,7 @@ rlp@^2.0.0, rlp@^2.1.0, rlp@^2.2.2, rlp@^2.2.3:
   dependencies:
     bn.js "^4.11.1"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.2, safe-buffer@~5.2.0:
+safe-buffer@^5.0.1, safe-buffer@^5.1.2:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
   integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
@@ -1525,6 +1525,11 @@ safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
+safe-buffer@~5.2.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+  integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
+
 safer-buffer@^2.0.2, safer-buffer@^2.1.0, safer-buffer@~2.1.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"