Update ClinVar script to import somatic classifications + patch db schema 115

[dglemos]

Ticket: https://www.ebi.ac.uk/panda/jira/browse/ENSVAR-5941

• add db schema patches: patch_114_115_a.sql and patch_114_115_b.sql
• add new clinvar attrib types to attrib_entries.sql (new attrib types were inserted in the production db on 2024-10-31)
• update clinvar import
• update clinvar post process
• update API
• add tests

This update should be merged before Ensembl/ensembl-vep#1794

[nakib103]

Suggested change

	@{$mainXrefs->{'dbSNP'}} = keys {map { $_ => 1 } @{$mainXrefs->{'dbSNP'}} } if defined $mainXrefs->{'dbSNP'};
	@{$mainXrefs->{'dbSNP'}} = keys %{+{ map { $_ => 1 } @{$mainXrefs->{'dbSNP'}} }} if defined $mainXrefs->{'dbSNP'};

Need an anon hash constructor and then dereference the hash, otherwise with perl >5.14 getting the error -

Experimental keys on scalar is now forbidden at /hps/software/users/ensembl/variation/snhossain/ensembl-variation/scripts/import/import_clinvar_xml line 881.

Similar issue in Line 710 and 713.