fix(deps): update dependency koa to v2.15.4 [security]

packages/backend/package.json

@@ -60,7 +60,7 @@
 		"json5-loader": "4.0.1",
 		"jsonld": "6.0.0",
 		"jsrsasign": "11.0.0",
-		"koa": "2.13.4",
+		"koa": "2.15.4",
 		"koa-bodyparser": "4.3.0",
 		"koa-favicon": "2.1.0",
 		"koa-logger": "3.2.1",

packages/backend/yarn.lock

@@ -2206,6 +2206,14 @@ cookies@~0.8.0:
     depd "~2.0.0"
     keygrip "~1.1.0"
 
+cookies@~0.9.0:
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/cookies/-/cookies-0.9.1.tgz#3ffed6f60bb4fb5f146feeedba50acc418af67e3"
+  integrity sha512-TG2hpqe4ELx54QER/S3HQ9SRVnQnGBtKUz5bLQWtYAQ+o6GpgMs6sYUvaiJjVxb+UXwhRhAEP3m7LbsIZ77Hmw==
+  dependencies:
+    depd "~2.0.0"
+    keygrip "~1.1.0"
+
 copy-to@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/copy-to/-/copy-to-2.0.1.tgz#2680fbb8068a48d08656b6098092bdafc906f4a5"
@@ -4867,6 +4875,35 @@ [email protected], koa@^2.13.1:
     type-is "^1.6.16"
     vary "^1.1.2"
 
+[email protected]:
+  version "2.15.4"
+  resolved "https://registry.yarnpkg.com/koa/-/koa-2.15.4.tgz#7000b3d8354558671adb1ba1b1c09bedb5f8da75"
+  integrity sha512-7fNBIdrU2PEgLljXoPWoyY4r1e+ToWCmzS/wwMPbUNs7X+5MMET1ObhJBlUkF5uZG9B6QhM2zS1TsH6adegkiQ==
+  dependencies:
+    accepts "^1.3.5"
+    cache-content-type "^1.0.0"
+    content-disposition "~0.5.2"
+    content-type "^1.0.4"
+    cookies "~0.9.0"
+    debug "^4.3.2"
+    delegates "^1.0.0"
+    depd "^2.0.0"
+    destroy "^1.0.4"
+    encodeurl "^1.0.2"
+    escape-html "^1.0.3"
+    fresh "~0.5.2"
+    http-assert "^1.3.0"
+    http-errors "^1.6.3"
+    is-generator-function "^1.0.7"
+    koa-compose "^4.1.0"
+    koa-convert "^2.0.0"
+    on-finished "^2.3.0"
+    only "~0.0.2"
+    parseurl "^1.3.2"
+    statuses "^1.5.0"
+    type-is "^1.6.16"
+    vary "^1.1.2"
+
 ky-universal@^0.10.1:
   version "0.10.1"
   resolved "https://registry.yarnpkg.com/ky-universal/-/ky-universal-0.10.1.tgz#778881e098f6e3c52a87b382d9acca54d22bb0d3"