Update coverage

Due to switching from kcov to llvm-cov, the reported coverage changed.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

coverage_config_x86_64.json

@@ -1,5 +1,5 @@
 {
-  "coverage_score": 96.7,
+  "coverage_score": 87.50,
   "exclude_path": "",
   "crate_features": ""
 }