Fix bsc#1221049

[varkoly]

Problem

When configuration was saved befor installing last version the module can not be started.
The reason is that the class SapHA::Configuration::ClusterFinalizer was removed and implemented as a function of the class SapHA::Configuration::Hana

• https://bugzilla.suse.com/show_bug.cgi?id=1221049

Solution

Catch error when the configuration file could not be parsed.

[coveralls]

Pull Request Test Coverage Report for Build 8338920586

Details

• 0 of 7 (0.0%) changed or added relevant lines in 2 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.03%) to 29.555%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/lib/sap_ha/configuration/hana.rb	0	1	0.0%
src/lib/sap_ha/wizard/scenario_selection_page.rb	0	6	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/lib/sap_ha/wizard/scenario_selection_page.rb	1	0.0%

Totals
Change from base Build 7887394633:	-0.03%
Covered Lines:	1223
Relevant Lines:	4138

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💛 - Coveralls

[yast-bot]

✔️ Internal Jenkins job #760 successfully finished
✔️ Created IBS submit request #324352