ci(connector-corda): fix insufficient disk space errors

We have the disk clean-up in the CI off by default because it takes a few
minutes to perform and most jobs don't need it, but for Corda it seems
necessary because our tests started failing with the message below
(lines wrapped to make sure we don't run over the 100 character limit
for the git commit message)

cactus-corda-4-8-all-in-one-flowdb:2024-07-08-hotfix-1]
[WARN] 09:48:28+0000 [Thread-2
(ActiveMQ-server-org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl$6@11a43807)]
core.server. -
AMQ222210: Free storage space is at 145.7MB of 77.9GB total. Usage rate is 99.8% which is
beyond the configured <max-disk-usage>. System will start blocking producers.

Signed-off-by: Peter Somogyvari <peter.somogyvari@accenture.com>

.github/workflows/ci.yaml

@@ -1132,6 +1132,7 @@ jobs:
       - compute_changed_packages
     if: needs.compute_changed_packages.outputs.plugin-ledger-connector-corda-changed == 'true'
     env:
+      FREE_UP_GITHUB_RUNNER_DISK_SPACE_DISABLED: false
       FULL_BUILD_DISABLED: true
       JEST_TEST_PATTERN: packages/cactus-plugin-ledger-connector-corda/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts
       JEST_TEST_RUNNER_DISABLED: false