Prepare release 0.20.0 #1233

Job	Run time
CI / Fast / Version	38s
CI / Fast / Format Check	31s
CI / Slow / Generate Build Matrix / all_versions	22s
CI / Fast / Generate Build Matrix / python_versions	23s
CI / Slow / Integration-Tests (Python-3.9, Exasol-7.1.9)	26s
CI / Slow / Integration-Tests (Python-3.10, Exasol-7.1.9)	22s
CI / Slow / Integration-Tests (Python-3.11, Exasol-7.1.9)	29s
CI / Slow / Integration-Tests (Python-3.12, Exasol-7.1.9)	28s
CI / Slow / Integration-Tests (Python-3.13, Exasol-7.1.9)	31s
CI / Fast / Docs	25s
CI / Fast / Linting (Python-3.9)	36s
CI / Fast / Security Checks (Python-3.9)	23s
CI / Fast / Security Checks (Python-3.10)	25s
CI / Fast / Linting (Python-3.10)	32s
CI / Fast / Security Checks (Python-3.11)	26s
CI / Fast / Linting (Python-3.11)	31s
CI / Fast / Security Checks (Python-3.12)	25s
CI / Fast / Linting (Python-3.12)	32s
CI / Fast / Type Checking (Python-3.9)	31s
CI / Fast / Security Checks (Python-3.13)	30s
CI / Fast / Linting (Python-3.13)	37s
CI / Fast / Type Checking (Python-3.10)	38s
CI / Fast / Type Checking (Python-3.11)	27s
CI / Fast / Type Checking (Python-3.12)	30s
CI / Fast / Type Checking (Python-3.13)	36s
CI / Fast / Unit-Tests (Python-3.9)	26s
CI / Fast / Unit-Tests (Python-3.10)	25s
CI / Fast / Unit-Tests (Python-3.11)	20s
CI / Fast / Unit-Tests (Python-3.12)	28s
CI / Fast / Unit-Tests (Python-3.13)	36s
CI / Allow Merge	1s
Metrics / Report	38s
	15m 8s

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