FINERACT-2663: Fix compiler deprecation warnings in core, security, p…

[Abhishek6122008]

…rovider, investor modules

Description

Describe the changes made and why they were made. (Ignore if these details are present on the associated Apache Fineract JIRA ticket.)

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[Abhishek6122008]

@adamsaghy Sir the only failing check is PostgreSQL Tests (Shard 7 of 15), and I'm a bit confused about it, could you give some advice on what I can do from my side to avoid this check failure?

[adamsaghy]

@Abhishek6122008 You might want to squash your commits into just one ;)

[Abhishek6122008]

@Abhishek6122008 You might want to squash your commits into just one ;)

@adamsaghy Done Sir please let me know if any other changes are needed, thank you so much in taking the time to help me with this pr really appriciate it :D.

[adamsaghy]

LGTM