Update quotes for heredocs with embedded Ruby with \n #1877

Job	Run time
RuboCop	33s
RuboCop	33s
specs (ubuntu, 3.0.6)	1m 36s
specs (ubuntu, 3.0.6)	1m 36s
specs (ubuntu, 3.1.4)	1m 29s
specs (ubuntu, 3.1.4)	1m 29s
specs (ubuntu, 3.2.2)	1m 30s
specs (ubuntu, 3.2.2)	1m 30s
specs (ubuntu, 3.3.0)	55s
specs (ubuntu, 3.3.0)	1m 24s
specs (ubuntu, 3.4.1)	1m 35s
specs (ubuntu, 3.4.1)	1m 35s
specs (macos, 3.0.6)	1m 24s
specs (macos, 3.0.6)	1m 24s
specs (macos, 3.1.4)	1m 51s
specs (macos, 3.1.4)	1m 51s
specs (macos, 3.2.2)	1m 9s
specs (macos, 3.2.2)	1m 9s
specs (macos, 3.3.0)	1m 7s
specs (macos, 3.3.0)	1m 7s
specs (macos, 3.4.1)	1m 10s
specs (macos, 3.4.1)	1m 10s
specs (windows, 3.0.6)	5m 30s
specs (windows, 3.0.6)	5m 30s
specs (windows, 3.1.4)	5m 35s
specs (windows, 3.1.4)	5m 35s
specs (windows, 3.2.2)	5m 32s
specs (windows, 3.2.2)	5m 32s
specs (windows, 3.3.0)	4m 59s
specs (windows, 3.3.0)	4m 59s
specs (windows, 3.4.1)	5m 28s
specs (windows, 3.4.1)	5m 28s
specs (ubuntu, 3.3.0, --enable-frozen-string-literal)	1m 26s
specs (ubuntu, 3.3.0, --enable-frozen-string-literal)	1m 26s
	1h 26m 7s

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