chore(release): add signed checksums for v1.4.0

Author: m0wer

signatures/v1.4.0/SHA256SUMS

@@ -0,0 +1,9 @@
+00c715a5848ac913f62f3ab5e8b62dd8be58f26ba4022ca0b532728b1c72d820  neutrinod-windows-amd64.exe
+1e8088c8154bdab1d5a2e85bd9ba23b94524bbdc17e3f11d5990593f36944966  neutrinod-linux-amd64
+3192313946112d298f4fdd91beb540b1605765a3f1ffe3a8f11d6d74e8e5e5b2  neutrinod-darwin-amd64
+66dd57c00d0f1ec21c97036894bd0acd08dce0a9b3093041b959c055ea25eb1d  neutrinod-linux-armv7
+757079f87591a203c476d5186d0daecc59a91ca777a20e75b7f0fd3e0ab444bd  neutrinod-linux-arm64
+a7812c69d699373256eefb1fa60f9fd8e07449d88a5423f7bdb095beeea720f4  neutrinod-linux-armv6
+b172bdc16f0300a1043c80737fb5974c5643364c53573ec2eb2d067d7e4205f8  neutrinod-darwin-arm64
+bedc8b4263e4c6fadd5420d84d5376aa0825c9640fc35a068a7a1395b663744d  neutrinod-windows-arm64.exe
+f0ce4b80f7c4987743c4fc6cffced6beb1da7ed947c9aac6a51d0e9d94371931  neutrinod-linux-386

signatures/v1.4.0/SHA256SUMS.asc

@@ -0,0 +1,16 @@
+-----BEGIN PGP SIGNATURE-----
+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+=r4qu
+-----END PGP SIGNATURE-----