refactor(shared): rename 'properties' to 'metadata' on MBeanNode

[tadayosi]

Fix #453

[github-actions]

Test Results

    8 files  ±0      8 suites  ±0   43m 33s ⏱️ +9s
  48 tests ±0    43 ✔️ ±0    5 💤 ±0  0 ❌ ±0 
364 runs  ±0  344 ✔️ ±0  20 💤 ±0  0 ❌ ±0 

Results for commit 3a1c9e4. ± Comparison against base commit afc7219.

♻️ This comment has been updated with latest results.

[hawtio-ci]

Test results

Run attempt: 291
Detailed summary

NAME	TESTS	PASSED ✅	SKIPPED 💤	FAILED ❌	ERRORS 🚫	TIME 🕖
results-quarkus-node(16)-java(11)-firefox	45	43	2	0	0	360.354
results-quarkus-node(16)-java(17)-firefox	45	43	2	0	0	321.73
results-quarkus-node(18)-java(11)-firefox	45	43	2	0	0	279.425
results-quarkus-node(18)-java(17)-firefox	45	43	2	0	0	360.846
results-springboot-node(16)-java(11)-firefox	46	43	3	0	0	326.633
results-springboot-node(16)-java(17)-firefox	46	43	3	0	0	367.188
results-springboot-node(18)-java(11)-firefox	46	43	3	0	0	308.577
results-springboot-node(18)-java(17)-firefox	46	43	3	0	0	288.833