CI: Update Alpine permutation

Drop the no longer supported 3.15, adding 3.18 and 3.19 in it's place.
Note that since 3.18 the lts kernels ship finally with the signing
tools \o/

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

.github/workflows/tests.yml

@@ -15,12 +15,14 @@ jobs:
         distro:
           - {name: "almalinux", tag: "9"}
           - {name: "almalinux", tag: "8"}
+          - {name: "alpine", tag: "3.19", variant: "-lts"}
+          - {name: "alpine", tag: "3.19", variant: "-virt"}
+          - {name: "alpine", tag: "3.18", variant: "-lts"}
+          - {name: "alpine", tag: "3.18", variant: "-virt"}
           - {name: "alpine", tag: "3.17", variant: "-lts"}
           - {name: "alpine", tag: "3.17", variant: "-virt"}
           - {name: "alpine", tag: "3.16", variant: "-lts"}
           - {name: "alpine", tag: "3.16", variant: "-virt"}
-          - {name: "alpine", tag: "3.15", variant: "-lts"}
-          - {name: "alpine", tag: "3.15", variant: "-virt"}
           - {name: "archlinux", tag: "latest"}
           - {name: "archlinux", tag: "latest", variant: "-lts"}
           - {name: "archlinux", tag: "latest", variant: "-zen"}
@@ -121,7 +123,11 @@ jobs:
         done
 
         if [ "${{ matrix.distro.name }}" = alpine ] && [ "${{ matrix.distro.variant }}" = "-lts" ]; then
-            ./run_test.sh --no-signing-tool
+            if [ "${{ matrix.distro.tag}}" = "3.16" ] || [ "${{ matrix.distro.tag }}" = "3.17" ]; then
+                ./run_test.sh --no-signing-tool
+            else
+                ./run_test.sh
+            fi
         else
             ./run_test.sh
         fi