Merge pull request #28848 from vbotbuildovich/backport-pr-28843-v25.3.x-858

[v25.3.x] test: fix silent ignore of openssl failure

Author: piyushredpanda

tests/rptest/services/tls.py

@@ -355,14 +355,14 @@ def _with_dir(self, *args):
 
     def _exec(self, cmd) -> str:
         self._logger.info(f"Running command: {cmd}")
-        retries = 0
+        retries = 1
         output = None
-        while retries < 3:
+        while True:
             try:
                 output = subprocess.check_output(
                     cmd.split(), cwd=self._dir.name, stderr=subprocess.STDOUT
                 )
-                retries = 3  # Stop retry
+                self._logger.debug(f"openssl output: {output}")
                 return output.decode("utf-8")
             except subprocess.CalledProcessError as e:
                 self._logger.error(f"openssl error: {e.output}")