Bump bl from 4.0.2 to 4.0.3 in /client (#1810)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Severiano Badajoz <sbadajoz@chanzuckerberg.com>

client/package-lock.json

@@ -6727,9 +6727,9 @@
       }
     },
     "bl": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/bl/-/bl-4.0.2.tgz",
-      "integrity": "sha512-j4OH8f6Qg2bGuWfRiltT2HYGx0e1QcBTrK9KAHNMwMZdQnDZFk0ZSYIpADjYCB3U12nicC5tVJwSIhwOWjb4RQ==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/bl/-/bl-4.0.3.tgz",
+      "integrity": "sha512-fs4G6/Hu4/EE+F75J8DuN/0IpQqNjAdC7aEQv7Qt8MHGUH7Ckv2MwTEEeN9QehD0pfIDkMI1bkHYkKy7xHyKIg==",
       "dev": true,
       "requires": {
         "buffer": "^5.5.0",
@@ -6737,16 +6737,6 @@
         "readable-stream": "^3.4.0"
       },
       "dependencies": {
-        "buffer": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.5.0.tgz",
-          "integrity": "sha512-9FTEDjLjwoAkEwyMGDjYJQN2gfRgOKBKRfiglhvibGbpeeU/pQn1bJxQqm32OD/AIeEuHxU9roxXxg34Byp/Ww==",
-          "dev": true,
-          "requires": {
-            "base64-js": "^1.0.2",
-            "ieee754": "^1.1.4"
-          }
-        },
         "readable-stream": {
           "version": "3.6.0",
           "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",