Cannot fetch git submodules

[qezz]

It seems like both https://github.com/mantlenetworkio/datalayr/ and https://github.com/mantlenetworkio/eignlayr-contracts/ are private, which makes it impossible to build stuff from source.

mantlenetworkio/mantle (main) $ go build l2geth-exporter/main.go
l2geth-exporter/bindings/CanonicalTransactionChain.go:11:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/bindings/CanonicalTransactionChain.go:12:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/l1contracts/main.go:7:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/main.go:10:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/bindings/CanonicalTransactionChain.go:15:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/main.go:11:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/bindings/CanonicalTransactionChain.go:16:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/main.go:12:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory
l2geth-exporter/main.go:14:2: github.com/Layr-Labs/datalayr/common@v0.0.0 (replaced by ./datalayr/common): reading datalayr/common/go.mod: open /home/sergey/work/source/mantlenetworkio/mantle/datalayr/common/go.mod: no such file or directory