Bump protobuf from 4.21.5 to 4.21.6

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 4.21.5 to 4.21.6.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Pipfile.lock

@@ -82,23 +82,23 @@
         },
         "protobuf": {
             "hashes": [
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-                "sha256:5310cbe761e87f0c1decce019d23f2101521d4dfff46034f8a12a53546036ec7",
-                "sha256:5e0b272217aad8971763960238c1a1e6a65d50ef7824e23300da97569a251c55",
-                "sha256:5e0ce02418ef03d7657a420ae8fd6fec4995ac713a3cb09164e95f694dbcf085",
-                "sha256:5eb0724615e90075f1d763983e708e1cef08e66b1891d8b8b6c33bc3b2f1a02b",
-                "sha256:7b6f22463e2d1053d03058b7b4ceca6e4ed4c14f8c286c32824df751137bf8e7",
-                "sha256:a7faa62b183d6a928e3daffd06af843b4287d16ef6e40f331575ecd236a7974d",
-                "sha256:b04484d6f42f48c57dd2737a72692f4c6987529cdd148fb5b8e5f616862a2e37",
-                "sha256:b52e7a522911a40445a5f588bd5b5e584291bfc5545e09b7060685e4b2ff814f",
-                "sha256:bf711b451212dc5b0fa45ae7dada07d8e71a4b0ff0bc8e4783ee145f47ac4f82",
-                "sha256:e5c5a2886ae48d22a9d32fbb9b6636a089af3cd26b706750258ce1ca96cc0116",
-                "sha256:eb1106e87e095628e96884a877a51cdb90087106ee693925ec0a300468a9be3a",
-                "sha256:ee04f5823ed98bb9a8c3b1dc503c49515e0172650875c3f76e225b223793a1f2"
+                "sha256:07a0bb9cc6114f16a39c866dc28b6e3d96fa4ffb9cc1033057412547e6e75cb9",
+                "sha256:308173d3e5a3528787bb8c93abea81d5a950bdce62840d9760effc84127fb39c",
+                "sha256:4143513c766db85b9d7c18dbf8339673c8a290131b2a0fe73855ab20770f72b0",
+                "sha256:49f88d56a9180dbb7f6199c920f5bb5c1dd0172f672983bb281298d57c2ac8eb",
+                "sha256:6b1040a5661cd5f6e610cbca9cfaa2a17d60e2bb545309bc1b278bb05be44bdd",
+                "sha256:77b355c8604fe285536155286b28b0c4cbc57cf81b08d8357bf34829ea982860",
+                "sha256:7a6cc8842257265bdfd6b74d088b829e44bcac3cca234c5fdd6052730017b9ea",
+                "sha256:80e6540381080715fddac12690ee42d087d0d17395f8d0078dfd6f1181e7be4c",
+                "sha256:8f9e60f7d44592c66e7b332b6a7b4b6e8d8b889393c79dbc3a91f815118f8eac",
+                "sha256:9666da97129138585b26afcb63ad4887f602e169cafe754a8258541c553b8b5d",
+                "sha256:aa29113ec901281f29d9d27b01193407a98aa9658b8a777b0325e6d97149f5ce",
+                "sha256:b6cea204865595a92a7b240e4b65bcaaca3ad5d2ce25d9db3756eba06041138e",
+                "sha256:ba596b9ffb85c909fcfe1b1a23136224ed678af3faf9912d3fa483d5f9813c4e",
+                "sha256:c7c864148a237f058c739ae7a05a2b403c0dfa4ce7d1f3e5213f352ad52d57c6"
             ],
             "index": "pypi",
-            "version": "==4.21.5"
+            "version": "==4.21.6"
         },
         "qrcode": {
             "hashes": [