Don't build the imac target against ESP IDF 4.4 as this is not supported #2841

Job	Run time
Compile (riscv32imc-esp-espidf, v4.4.8)	5m 42s
Compile (riscv32imc-esp-espidf, v5.1.2)	4m 50s
Compile (riscv32imc-esp-espidf, v5.2.3)	5m 53s
Compile (riscv32imc-esp-espidf, v5.3.2)	5m 43s
Compile (riscv32imac-esp-espidf, v4.4.8)	1m 19s
Compile (riscv32imac-esp-espidf, v5.1.2)	5m 45s
Compile (riscv32imac-esp-espidf, v5.2.3)	7m 51s
Compile (riscv32imac-esp-espidf, v5.3.2)	6m 1s
Compile (xtensa-esp32-espidf, v4.4.8)	4m 43s
Compile (xtensa-esp32-espidf, v5.1.2)	4m 29s
Compile (xtensa-esp32-espidf, v5.2.3)	4m 11s
Compile (xtensa-esp32-espidf, v5.3.2)	3m 57s
Compile (xtensa-esp32s2-espidf, v4.4.8)	1s
Compile (xtensa-esp32s2-espidf, v5.1.2)	1s
Compile (xtensa-esp32s2-espidf, v5.2.3)	3m 52s
Compile (xtensa-esp32s2-espidf, v5.3.2)	3m 28s
Compile (xtensa-esp32s3-espidf, v4.4.8)	1s
Compile (xtensa-esp32s3-espidf, v5.1.2)	1s
Compile (xtensa-esp32s3-espidf, v5.2.3)	1s
Compile (xtensa-esp32s3-espidf, v5.3.2)	1s
	1h 7m 50s

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