Add linter checks to GHA & Fix code to pass lints

Add linter checks to GHA & Fix code to pass lints.
The linters added are:
- whitespace: Tool for detection of leading and trailing whitespace
- gosec: Inspects source code for security problems
- gci: Gci control golang package import order and make it always deterministic
- misspell: Finds commonly misspelled English words in comments
- gomnd: An analyzer to detect magic numbers

The file utils/utils.go is excluded from the checks of gomnd, as uses magic numbers through the code

common/pooll2tx_test.go

@@ -68,7 +68,6 @@ func TestTxCompressedData(t *testing.T) {
 	// test vector value generated from javascript implementation
 	assert.Equal(t, "6571340879233176732837827812956721483162819083004853354503", txCompressedData.String())
 	assert.Equal(t, "10c000000000b0000000a0009000000000008000000000007", hex.EncodeToString(txCompressedData.Bytes())[1:])
-
 }
 
 func TestHashToSign(t *testing.T) {