Appdata handling

[kp-mariappan-ramasamy]

Wolfssl team when discussing for another bug, discovered that we handle app_data only when secure_negotiation is enabled. But APP_DATA can be returned for DTLS1.3 which does not have secure renog

At first, APP_DATA was being used only by DTLS1.2 secure negotiation, but now it has been used in other versions like DTLS1.3.

Ref:
https://github.com/wolfSSL/wolfssl/pull/9539/changes

[github-actions]

Code coverage summary for 978cc7c:

Filename                             Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
wolfssl-sys/src/lib.rs                    34                 0   100.00%           4                 0   100.00%          22                 0   100.00%           0                 0         -
wolfssl/src/aes256.rs                    166                 8    95.18%          11                 0   100.00%         124                 4    96.77%           0                 0         -
wolfssl/src/chacha20_poly1305.rs          75                 2    97.33%           5                 0   100.00%          66                 2    96.97%           0                 0         -
wolfssl/src/context.rs                   401               173    56.86%          41                14    65.85%         286               110    61.54%           0                 0         -
wolfssl/src/error.rs                      44                12    72.73%           5                 1    80.00%          43                10    76.74%           0                 0         -
wolfssl/src/lib.rs                        81                15    81.48%          11                 1    90.91%          72                13    81.94%           0                 0         -
wolfssl/src/rng.rs                        71                 9    87.32%           6                 0   100.00%          42                 3    92.86%           0                 0         -
wolfssl/src/ssl.rs                      1233               320    74.05%          85                25    70.59%         834               241    71.10%           0                 0         -
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                                   2105               539    74.39%         168                41    75.60%        1489               383    74.28%           0                 0         -

✅ Region coverage 74% passes
✅ Line coverage 74% passes

[github-actions]

🚀 Release Plan

Crate	Previous version	New version	Release?	Comment
wolfssl	4.0.0	4.1.0	⛔ Blocked	dependency on pending wolfssl-sys
wolfssl-sys	3.0.0	3.1.0	✅ Release