gha: Build ITA for s390x

This commit builds/tests a feature `intel-trust-authority-as`
for s390x to make KBS verify Intel attester by relying on ITA.

Signed-off-by: Hyounggyu Choi <[email protected]>

Author: BbolroC

.github/actionlint.yml

@@ -1,4 +1,5 @@
 self-hosted-runner:
   # Labels of self-hosted runner in array of string
   labels:
-    - s390x
+    - s390x
+    - s390x-large

.github/workflows/build-kbs-image.yml

@@ -32,8 +32,6 @@ jobs:
           - kbs-ita-as
           - rhel-ubi
         exclude:
-          - target_arch: s390x
-            tag: kbs-ita-as
           - target_arch: s390x
             tag: rhel-ubi
           - target_arch: aarch64

.github/workflows/kbs-rust.yml

@@ -31,6 +31,8 @@ jobs:
           test_features: ""
         - instance: ubuntu-24.04-arm
           test_features: "coco-as-builtin,coco-as-grpc,intel-trust-authority-as,cca-attester"
+        - instance: s390x-large
+          test_features: "coco-as-builtin,coco-as-grpc,intel-trust-authority-as"
     runs-on: ${{ matrix.instance }}
 
     steps:
@@ -48,11 +50,6 @@ jobs:
       run: |
         sudo apt-get update && sudo apt-get install -y protobuf-compiler libprotobuf-dev libtss2-dev
 
-    - name: Install TPM dependencies
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y libtss2-dev
-
     - name: Install TDX dependencies
       if: ${{ matrix.instance == 'ubuntu-24.04' }}
       run: |