test: Delete keystore after removing private key

Author: danielinux

.github/workflows/test-keytools.yml

@@ -236,6 +236,10 @@ jobs:
       - name: Delete generated key
         run: |
           rm -f wolfboot_signing_private_key.der
+      
+      - name: Remove generated keystore
+        run: |
+          rm -f src/keystore.c
 
       - name: Run keygen with --id 0
         run: |
@@ -245,6 +249,10 @@ jobs:
         run: |
           rm -f wolfboot_signing_private_key.der
 
+      - name: Remove generated keystore
+        run: |
+          rm -f src/keystore.c
+
       - name: Run keygen with test id set
         run: |
           ./tools/keytools/keygen --id 1,3,5,10,11,13,14 --ecc256 -g wolfboot_signing_private_key.der | grep "mask" | grep "00006c2a"