ORC-1745: Remove `Ubuntu 20.04` Support #4099

Job	Run time
Javadoc generation	1m 54s
Docker debian11	19m 7s
C++ format check	8m 53s
Docker debian12	21m 21s
Java 17 and clang++ on ubuntu-22.04	19m 38s
License Check	32s
Docker ubuntu24	20m 42s
Java 21 and clang++ on ubuntu-22.04	19m 35s
Java 17 and clang++ on ubuntu-24.04	20m 7s
Docker fedora37	19m 12s
C++ Test on macOS (12)	6m 55s
Java 21 and clang++ on ubuntu-24.04	19m 59s
Docker oraclelinux9	19m 53s
C++ Test on macOS (13)	6m 59s
SIMD programming using C++ intrinsic functions on ubuntu-22.04	9m 28s
C++ Test on macOS (14)	3m 33s
Java 17 and clang++ on macos-12	23m 49s
Java 21 and clang++ on macos-12	21m 51s
C++ General Test on Windows	5m 1s
Java 17 and clang++ on macos-13	21m 50s
C++ AVX512 Test on Windows	5m 11s
Java 21 and clang++ on macos-13	30m 0s
Java 17 and clang++ on macos-14	13m 51s
Java 21 and clang++ on macos-14	14m 11s
Java 17 and g++ on ubuntu-22.04	19m 44s
	6h 13m 16s

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