chore: fix compilation problem #13183

Signed-off-by: jgomer2001 <bonustrack310@gmail.com>

Author: jgomer2001

jans-casa/plugins/cert-authn/agama/project/lib/io/jans/casa/certauthn/CertUtil.java

@@ -59,7 +59,7 @@ public static Pair<ValidationStatus, X509Certificate> validate(String certPEM, S
             certChain = cf.generateCertificates(is).stream().map(X509Certificate.class::cast)
                     .collect(Collectors.toList());
 
-        } catch (CertificateException e) {
+        } catch (IOException | CertificateException e) {
             logger.error(e.getMessage(), e);
             p.setFirst(ValidationStatus.UNPARSABLE);
             return p;