iroh: Add version 0.21.0 (#5669)

Co-authored-by: Aliaksandr Belik <[email protected]>
Co-authored-by: Hsiao-nan Cheung <[email protected]>

bucket/iroh.json

@@ -0,0 +1,21 @@
+{
+    "version": "0.21.0",
+    "description": "A protocol for syncing & moving bytes",
+    "homepage": "https://github.com/n0-computer/iroh",
+    "license": "Apache-2.0|MIT",
+    "architecture": {
+        "64bit": {
+            "url": "https://github.com/n0-computer/iroh/releases/download/v0.21.0/iroh-v0.21.0-x86_64-pc-windows-msvc.zip",
+            "hash": "491e332fb1e7fda1a0ca5dba481186f40a4a948a11c5c18b2570d6ad408141d8"
+        }
+    },
+    "bin": "iroh.exe",
+    "checkver": "github",
+    "autoupdate": {
+        "architecture": {
+            "64bit": {
+                "url": "https://github.com/n0-computer/iroh/releases/download/v$version/iroh-v$version-x86_64-pc-windows-msvc.zip"
+            }
+        }
+    }
+}