Add some components to the new testing framework (M part 1) (#6207)

tests/components/max7219digit/test.esp32-c3-idf.yaml

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+spi:
+  - id: spi_max7219digit
+    clk_pin: 6
+    mosi_pin: 7
+    miso_pin: 5
+
+display:
+  - platform: max7219digit
+    cs_pin: 8
+    num_chips: 4
+    rotate_chip: 0
+    intensity: 10
+    scroll_mode: STOP
+    id: my_matrix
+    lambda: |-
+      it.printdigit("hello");

tests/components/max7219digit/test.esp32-c3.yaml

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+spi:
+  - id: spi_max7219digit
+    clk_pin: 6
+    mosi_pin: 7
+    miso_pin: 5
+
+display:
+  - platform: max7219digit
+    cs_pin: 8
+    num_chips: 4
+    rotate_chip: 0
+    intensity: 10
+    scroll_mode: STOP
+    id: my_matrix
+    lambda: |-
+      it.printdigit("hello");

tests/components/max7219digit/test.esp32-idf.yaml

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+spi:
+  - id: spi_max7219digit
+    clk_pin: 16
+    mosi_pin: 17
+    miso_pin: 15
+
+display:
+  - platform: max7219digit
+    cs_pin: 12
+    num_chips: 4
+    rotate_chip: 0
+    intensity: 10
+    scroll_mode: STOP
+    id: my_matrix
+    lambda: |-
+      it.printdigit("hello");

tests/components/max7219digit/test.esp32.yaml

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+spi:
+  - id: spi_max7219digit
+    clk_pin: 16
+    mosi_pin: 17
+    miso_pin: 15
+
+display:
+  - platform: max7219digit
+    cs_pin: 12
+    num_chips: 4
+    rotate_chip: 0
+    intensity: 10
+    scroll_mode: STOP
+    id: my_matrix
+    lambda: |-
+      it.printdigit("hello");

tests/components/max7219digit/test.esp8266.yaml

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+spi:
+  - id: spi_max7219digit
+    clk_pin: 14
+    mosi_pin: 13
+    miso_pin: 12
+
+display:
+  - platform: max7219digit
+    cs_pin: 15
+    num_chips: 4
+    rotate_chip: 0
+    intensity: 10
+    scroll_mode: STOP
+    id: my_matrix
+    lambda: |-
+      it.printdigit("hello");

tests/components/max7219digit/test.rp2040.yaml

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+spi:
+  - id: spi_max7219digit
+    clk_pin: 2
+    mosi_pin: 3
+    miso_pin: 4
+
+display:
+  - platform: max7219digit
+    cs_pin: 6
+    num_chips: 4
+    rotate_chip: 0
+    intensity: 10
+    scroll_mode: STOP
+    id: my_matrix
+    lambda: |-
+      it.printdigit("hello");