test/api/all: set root partition size to at least 4 GiB

In [0] commit, we did the change for GCP image type only. We are hitting
the "No space left on device" error while building Azure and OCI image
types on RHEL-8.10. The images have 3 GiB root partition, which is not
big enough to accommodate all the installed content. We use CDN repos for
RHEL-8.10 testing, so most probably some recent batch update made the
difference and caused the failure.

Let's be consistent and make sure that the root partition min size is at
least 4 GiB for all image types that use filesystem customizations.

[0] 845f840

Signed-off-by: Tomáš Hozza <[email protected]>

Author: thozza

test/cases/api/aws.sh

@@ -42,6 +42,10 @@ function createReqFile() {
       {
         "mountpoint": "/var",
         "min_size": 262144000
+      },
+      {
+        "mountpoint": "/",
+        "min_size": 4294967296
       }
     ],
     "payload_repositories": [

test/cases/api/azure.sh

@@ -74,6 +74,10 @@ function createReqFile() {
       {
         "mountpoint": "/var",
         "min_size": 262144000
+      },
+      {
+        "mountpoint": "/",
+        "min_size": 4294967296
       }
     ],
     "payload_repositories": [

test/cases/api/oci.sh

@@ -66,6 +66,10 @@ function createReqFile() {
       {
         "mountpoint": "/var",
         "min_size": 262144000
+      },
+      {
+        "mountpoint": "/",
+        "min_size": 4294967296
       }
     ],
     "payload_repositories": [