Integration tests are panic due to localhost resolved to IPv6 address

[alexott]

MacOS with the default settings, on IPv6-enabled home network. Integration tests fails with panic:

--- FAIL: TestDataFrame_Select (0.00s)
    dataframe_test.go:41:
        	Error Trace:	/Users/ott/development/forks/spark-connect-go/internal/tests/integration/dataframe_test.go:41
        	Error:      	Received unexpected error:
        	            	[sparkerror] Error Type: execution error
        	            	Error Cause: failed to execute sql: select * from range(100): execution error: failed to call ExecutePlan in session 30941d43-d69e-4af0-af17-acfd619ca7da: rpc error: code = Unavailable desc = dns: error parsing A record IP address fe80::1%lo0
        	            	/Users/ott/development/forks/spark-connect-go/spark/sql/sparksession.go:135 (0x102fe4f41)
        	            		(*sparkSessionImpl).Sql: return nil, sparkerrors.WithType(fmt.Errorf("failed to execute sql: %s: %w", query, err), sparkerrors.ExecutionError)
        	            	/Users/ott/development/forks/spark-connect-go/internal/tests/integration/dataframe_test.go:40 (0x103022804)
        	            		TestDataFrame_Select: df, err := spark.Sql(ctx, "select * from range(100)")
        	            	/opt/homebrew/Cellar/go/1.23.4/libexec/src/testing/testing.go:1690 (0x102a09e64)
        	            		tRunner: fn(t)
        	            	/opt/homebrew/Cellar/go/1.23.4/libexec/src/runtime/asm_arm64.s:1223 (0x102950724)
        	            		goexit: MOVD	R0, R0	// NOP
        	Test:       	TestDataFrame_Select
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x198 pc=0x10302293c]

Changing from sc://localhost to sc://127.0.0.1 fixes the problem

[alexott]

Ok, it should be fixed by grpc/grpc-go#7889 - we need to upgrade grpc-go to 1.69.x