.ostc-ci: use build-recipe instead of build-image

There are indications that upload pipe between GitLab workers and the
OSTC GitLab instance is slowing down CI, making an otherwise fast
machine idle while it waits for network traffic.

Since the images were only consumed by LAVA and for the moment, LAVA is
disabled, switch jobs using .build-image to .build-recipe. The only
difference is that now artifacts are discarded immediately after the
build.

This is a temporary workaround that can be reverted once the situation
is debugged further.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>

.ostc-ci/machines-and-flavours.yaml

@@ -11,7 +11,7 @@
 # The following jobs are documented in docs/ci/shared-jobs.rst
 
 linux-qemu-x86:
-  extends: .build-image
+  extends: .build-recipe
   variables:
     MACHINE: qemux86
     OHOS_BUILD_FLAVOUR: linux
@@ -28,7 +28,7 @@ linux-qemu-x86:
     OHOS_BB_LOCAL_CONF_BB_GENERATE_MIRROR_TARBALLS: 1
 
 linux-qemu-x86_64:
-  extends: .build-image
+  extends: .build-recipe
   variables:
     MACHINE: qemux86-64
     OHOS_BUILD_FLAVOUR: linux
@@ -51,7 +51,7 @@ linux-seco-imx8mm-c61:
     OHOS_BB_LOCAL_CONF_ACCEPT_FSL_EULA: 1
 
 linux-stm32mp1-av96:
-  extends: .build-image
+  extends: .build-recipe
   variables:
     OHOS_BUILD_FLAVOUR: linux
     OHOS_RECIPE_NAME: allscenarios-image-base-tests
@@ -63,7 +63,7 @@ linux-raspberrypi4-64:
     MACHINE: raspberrypi4-64
 
 zephyr-qemu-x86:
-  extends: .build-image
+  extends: .build-recipe
   variables:
     MACHINE: qemu-x86
     # See the note on linux-qemu-x86.
@@ -73,7 +73,7 @@ zephyr-qemu-x86:
     OHOS_BUILD_FLAVOUR: zephyr
 
 zephyr-qemu-cortex-m3:
-  extends: .build-image
+  extends: .build-recipe
   variables:
     MACHINE: qemu-cortex-m3
     # See the note on linux-qemu-x86.
@@ -83,14 +83,14 @@ zephyr-qemu-cortex-m3:
     OHOS_BUILD_FLAVOUR: zephyr
 
 zephyr-96b-nitrogen:
-  extends: .build-image
+  extends: .build-recipe
   variables:
     MACHINE: 96b-nitrogen
     OHOS_RECIPE_NAME: zephyr-philosophers
     OHOS_BUILD_FLAVOUR: zephyr
 
 zephyr-96b-nitrogen-tests:
-  extends: .build-image
+  extends: .build-recipe
   variables:
     MACHINE: 96b-nitrogen
     OHOS_RECIPE_NAME: zephyr-kernel-test-all