feat: decrese the validity for biggest artifacts (#4970)

polkadot/.gitlab-ci.yml

@@ -353,7 +353,7 @@ build-rustdoc:
   artifacts:
     name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}-doc"
     when:                          on_success
-    expire_in:                     7 days
+    expire_in:                     1 days
     paths:
     - ./crate-docs/
   script:
@@ -430,6 +430,7 @@ publish-polkadot-image:
     reports:
       # this artifact is used in zombienet-tests job
       dotenv: ./artifacts/parachains.env
+    expire_in:                     1 days
 
 publish-adder-collator-image:
   # service image for Simnet