Fix "Unable to restart VM after applying CETS preset"

[arcusfelis]

This PR addresses "MIM-2071 Unable to restart VM after applying CETS preset"

Proposed changes include:

• Disable strict check that mnesia is running for mod_register and ejabberd_auth_anon (they are still not supported by CETS though).
• Configure mod_stream_management with the proper backend in the templates.

[mongoose-im]

elasticsearch_and_cassandra_26 / elasticsearch_and_cassandra_mnesia / a54298f
Reports root/ big
OK: 369 / Failed: 0 / User-skipped: 38 / Auto-skipped: 0

---

small_tests_25 / small_tests / a54298f
Reports root / small

---

small_tests_26_arm64 / small_tests / a54298f
Reports root / small

---

small_tests_26 / small_tests / a54298f
Reports root / small

---

ldap_mnesia_25 / ldap_mnesia / a54298f
Reports root/ big
OK: 2303 / Failed: 0 / User-skipped: 865 / Auto-skipped: 0

---

dynamic_domains_pgsql_mnesia_25 / pgsql_mnesia / a54298f
Reports root/ big
OK: 4268 / Failed: 0 / User-skipped: 112 / Auto-skipped: 0

---

dynamic_domains_mysql_redis_26 / mysql_redis / a54298f
Reports root/ big
OK: 4236 / Failed: 0 / User-skipped: 144 / Auto-skipped: 0

---

ldap_mnesia_26 / ldap_mnesia / a54298f
Reports root/ big
OK: 2303 / Failed: 0 / User-skipped: 865 / Auto-skipped: 0

---

dynamic_domains_pgsql_mnesia_26 / pgsql_mnesia / a54298f
Reports root/ big
OK: 4268 / Failed: 0 / User-skipped: 112 / Auto-skipped: 0

---

dynamic_domains_mssql_mnesia_26 / odbc_mssql_mnesia / a54298f
Reports root/ big
OK: 4265 / Failed: 0 / User-skipped: 115 / Auto-skipped: 0

---

internal_mnesia_26 / internal_mnesia / a54298f
Reports root/ big
OK: 2453 / Failed: 0 / User-skipped: 715 / Auto-skipped: 0

---

pgsql_cets_26 / pgsql_cets / a54298f
Reports root/ big
OK: 4655 / Failed: 0 / User-skipped: 121 / Auto-skipped: 0

---

mysql_redis_26 / mysql_redis / a54298f
Reports root/ big
OK: 4637 / Failed: 0 / User-skipped: 139 / Auto-skipped: 0

---

pgsql_mnesia_25 / pgsql_mnesia / a54298f
Reports root/ big
OK: 4657 / Failed: 0 / User-skipped: 119 / Auto-skipped: 0

---

pgsql_mnesia_26 / pgsql_mnesia / a54298f
Reports root/ big
OK: 4657 / Failed: 0 / User-skipped: 119 / Auto-skipped: 0

---

mssql_mnesia_26 / odbc_mssql_mnesia / a54298f
Reports root/ big
OK: 4654 / Failed: 0 / User-skipped: 122 / Auto-skipped: 0

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (507fcd5) 84.08% compared to head (a54298f) 84.07%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4143      +/-   ##
==========================================
- Coverage   84.08%   84.07%   -0.02%     
==========================================
  Files         560      560              
  Lines       34015    34017       +2     
==========================================
- Hits        28601    28599       -2     
- Misses       5414     5418       +4     

Files	Coverage Δ
src/auth/ejabberd_auth_anonymous.erl	68.85% <100.00%> (+0.51%)	⬆️
src/mod_register.erl	76.09% <100.00%> (+0.11%)	⬆️

... and 9 files with indirect coverage changes

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[chrzaszcz]

Looks ok