acceptance: stabilize start-single-node in tcl test

We've continued to see flakes on this test which contain messages of
throttled stores on node startup. The hypothesis is that these are due
to leftover data directories from prior startups during the same test.

This change clears the `logs/db` data directory for those invocations
and also adds the sql memory flag which the common tcl function also
uses.

Resolves cockroachdb#108405
Epic: None

Release note: None

Author: dhartunian

pkg/cli/interactive_tests/test_missing_log_output.tcl

@@ -63,27 +63,30 @@ eexpect ":/# "
 stop_server $argv
 
 start_test "Check that a server started with --logtostderr logs even info messages to stderr."
-send "$argv start-single-node -s=path=logs/db --insecure --logtostderr\r"
+send "$argv start-single-node --max-sql-memory=128MB -s=path=logs/db --insecure --logtostderr\r"
 eexpect "CockroachDB node starting"
 end_test
 
 # Stop it.
 interrupt
 interrupt
 eexpect ":/# "
+system "rm -rf logs/db"
 
 start_test "Check that --logtostderr can override the threshold but no error is printed on startup"
-send "echo marker; $argv start-single-node -s=path=logs/db --insecure --logtostderr=ERROR 2>&1 | grep -v '^\\*'\r"
+send "echo marker; $argv start-single-node --max-sql-memory=128MB -s=path=logs/db --insecure --logtostderr=ERROR 2>&1 | grep -v '^\\*'\r"
 eexpect "marker\r\nCockroachDB node starting"
 end_test
 
 # Stop it.
 interrupt
 interrupt
 eexpect ":/# "
+system "rm -rf logs/db"
+
 
 start_test "Check that panic reports are printed to the log even when --logtostderr is specified"
-send "$argv start-single-node -s=path=logs/db --insecure --logtostderr\r"
+send "$argv start-single-node --max-sql-memory=128MB -s=path=logs/db --insecure --logtostderr\r"
 eexpect "CockroachDB node starting"
 
 system "($argv sql --insecure -e \"select crdb_internal.force_panic('helloworld')\" || true)&"