Bump Microsoft.OData.Edm from 7.6.1 to 7.9.4

Bumps Microsoft.OData.Edm from 7.6.1 to 7.9.4.

---
updated-dependencies:
- dependency-name: Microsoft.OData.Edm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/OoasGui/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.OData.Edm" version="7.6.1" targetFramework="net461" />
+  <package id="Microsoft.OData.Edm" version="7.9.4" targetFramework="net461" />
   <package id="Microsoft.OpenApi" version="1.2.3" targetFramework="net472" />
 </packages>