[master] 380ea7aeb coverity: Tentatively update github action

[Dridi Boukelmoune]

commit 380ea7aebed6366af2c265ca57b0498ddc4f7f84
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Tue Feb 4 17:40:50 2025 +0100

    coverity: Tentatively update github action
    
    I have no idea how to test a YAML change without commiting it first.

diff --git a/.github/workflows/coverity.yml b/.github/workflows/coverity.yml
index 6843d91bd..c86322600 100644
--- a/.github/workflows/coverity.yml
+++ b/.github/workflows/coverity.yml
@@ -28,7 +28,7 @@ jobs:
       - uses: actions/checkout at v2
       - run: ./autogen.sh
       - run: ./configure --with-persistent-storage
-      - uses: vapier/coverity-scan-action at v0
+      - uses: vapier/coverity-scan-action at v1.8.0
         with:
           project: varnish
           email: varnish-dev at varnish-cache.org