feat(cockpit): add config get command to generate Prometheus remote_write snippet

[jremy42]

close #2966

[codecov-commenter]

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
2383	2	2381	17

View the top 2 failed test(s) by shortest run time

github.com/scaleway/scaleway-cli/v2/core/human::TestMarshal

Stack Traces | 0s run time

=== RUN   TestMarshal
--- FAIL: TestMarshal (0.00s)

github.com/scaleway/scaleway-cli/v2/core/human::TestMarshal/structWithMapsInSection

Stack Traces | 0s run time

=== RUN   TestMarshal/structWithMapsInSection
    marshal_test.go:155: 
        	Error Trace:	.../core/human/marshal_test.go:91
        	Error:      	Not equal: 
        	            	expected: "String              This is a string\nInt                 42\nBool                true\nStrings.0           s1\nStrings.1           s2\nTime                35 years ago\nStruct.String       -\nStruct.Int          0\nStruct.Bool         false\nStruct.Time         a long while ago\nStruct.Stringer     a stringer\nStructs.0.String    Nested string\nStructs.0.Int       0\nStructs.0.Bool      false\nStructs.0.Time      a long while ago\nStructs.0.Stringer  a stringer\nStringer            a stringer\nStringerPtr         a stringer\nSize                13 kB\nBytes               AAE=\n\nMap String List:\nkey1  v1 v2\nkey2  v3 v4\n\nMap:\nkey1  v1\nkey2  v2"
        	            	actual  : "String              This is a string\nInt                 42\nBool                true\nStrings.0           s1\nStrings.1           s2\nTime                36 years ago\nStruct.String       -\nStruct.Int          0\nStruct.Bool         false\nStruct.Time         a long while ago\nStruct.Stringer     a stringer\nStructs.0.String    Nested string\nStructs.0.Int       0\nStructs.0.Bool      false\nStructs.0.Time      a long while ago\nStructs.0.Stringer  a stringer\nStringer            a stringer\nStringerPtr         a stringer\nSize                13 kB\nBytes               AAE=\n\nMap String List:\nkey1  v1 v2\nkey2  v3 v4\n\nMap:\nkey1  v1\nkey2  v2"
        	            	
        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -5,3 +5,3 @@
        	            	 Strings.1           s2
        	            	-Time                35 years ago
        	            	+Time                36 years ago
        	            	 Struct.String       -
        	Test:       	TestMarshal/structWithMapsInSection
--- FAIL: TestMarshal/structWithMapsInSection (0.00s)

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