Added TS(9) support in Exasol VS (#131)

- updated exasol versions to the latest ones
- applied generated changes based on the project-keeper:fix to fix security vulnerabilities
- added ExaMetadata parameters for several constructors after updating virtual-schema-common-jdbc after updating from version 12.0.0 to 13.0.0
- started to fix the test, which now parses exasol db version from ExaMetadata parameter
- fixed unit tests by returning not-null getDatabaseVersion() for exaMetadataMock
- updated ubuntu version and exasol database versions in the github workflow
- added summary and other sections to changes document
- fixed project-keeper findings, which unfortunately don't reflect in a local run
- fixed project-keeper verify errors
 - try to fix the integration tests and some other minor changes
- implemented extractTimestampPrecision method and added unit tests for 6 TIMESTAMP example values
- fixed Sonar Cloud findings
- added parameterized test methods for timestamp values
- try to fix integration tests by using timestamp with precision for timestamp type
- try to fix integration tests by reverting unnecessary changes and by updating docker exasol db version from 8.24.0 (without timestamp precision support) to 8.34.0 (with timestamp precision support)
- added solution to run integration tests locally by adding use case for local environment in getTestHostIpFromInsideExasol
- fixed integration tests for timestamp with local timezone by implementing convertTimestamp in ExasolColumnMetadataReader, which is the same as in BaseColumnMetadataReader, only for timestamp with local time zone
- not sure about the expected behaviour for test testCastVarcharAsTimestampWithLocalTimezone. Currently it truncates timestamp to microseconds (6 decimal values), therefore timestamps with 7,8 and 9 precision are truncated to timestamp with 6 precision: if it is not expected behaviour, then we need to clarify where and how to fix it
- fixed unit tests for timestamps with local zone and with precision
- added suggestions from the PR review
- fixed the test for 8.29.9 version by implementing supportTimestampPrecision() method and skipping the tests, if the exasol db version doesn't support timestamp precision
- fixed sonar cloud code smells
- added javadocs comment to testCastVarcharAsTimestampWithCustomPrecision regarding truncation of the decimal digits to 6 for TIMESTAMP(7-9)
- fixed testCastVarcharAsTimestampWithCustomPrecision by setting system‐wide default timestamp format to include up to 9 fractional digits (using "ALTER SYSTEM SET NLS_TIMESTAMP_FORMAT = 'YYYY-MM-DD HH24:MI:SS.FF9'")
 - try to fix integration test testCastVarcharAsTimestampWithCustomPrecision in the github actions by adding accept("TIMESTAMP")
- try to fix integration test by adding ALTER SESSION in addition to ALTER SYSTEM
- fixed sonar cloud warning
- some changes based on the PR review comments
- Updated release date in doc/changes/changes_8.0.1.md

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Co-authored-by: Christoph Pirkl <[email protected]>

Author: skyglass

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