tools: Fix pytest-cov in pre-commit

 - Corrected name in config file

Signed-off-by: Tim Hall <tim.hall@arm.com>
Change-Id: I245571605173466d08ea2a2139444fc9ff519d3b
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8b930b7..d480f6e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -30,7 +30,7 @@
         always_run: true
 
     -   id: pytest-cov
-        name: pytest
+        name: pytest-cov
         stages: [push]
         language: system
         entry: pytest -v --cov=ethosu --cov-fail-under=0