feat: script to disable bbr (#4047)

## Overview

adds a script to disable bbr as a convenience for anyone that needs to
test w/ and w/o bbr

Makefile

@@ -276,6 +276,22 @@ enable-bbr:
 	fi
 .PHONY: enable-bbr
 
+## disable-bbr: Disable BBR congestion control algorithm and revert to default.
+disable-bbr:
+	@echo "Disabling BBR and reverting to default congestion control algorithm..."
+	@if [ "$$(sysctl net.ipv4.tcp_congestion_control | awk '{print $$3}')" = "bbr" ]; then \
+	    echo "BBR is currently enabled. Reverting to Cubic..."; \
+	    sudo sed -i '/^net.core.default_qdisc=fq/d' /etc/sysctl.conf; \
+	    sudo sed -i '/^net.ipv4.tcp_congestion_control=bbr/d' /etc/sysctl.conf; \
+	    sudo modprobe -r tcp_bbr; \
+	    echo "net.ipv4.tcp_congestion_control=cubic" | sudo tee -a /etc/sysctl.conf; \
+	    sudo sysctl -p; \
+	    echo "BBR has been disabled, and Cubic is now the default congestion control algorithm."; \
+	else \
+	    echo "BBR is not enabled. No changes made."; \
+	fi
+.PHONY: disable-bbr
+
 ## enable-mptcp: Enable mptcp over multiple ports (not interfaces). Only works on Linux Kernel 5.6 and above.
 enable-mptcp:
 	@echo "Configuring system to use mptcp..."

go.mod

@@ -4,7 +4,7 @@ go 1.23.1
 
 require (
 	cosmossdk.io/errors v1.0.1
-	cosmossdk.io/math v1.3.0
+	cosmossdk.io/math v1.4.0
 	github.com/celestiaorg/blobstream-contracts/v3 v3.1.0
 	github.com/celestiaorg/go-square v1.1.1
 	github.com/celestiaorg/go-square/v2 v2.0.0

go.sum

@@ -188,8 +188,8 @@ cloud.google.com/go/workflows v1.7.0/go.mod h1:JhSrZuVZWuiDfKEFxU0/F1PQjmpnpcoIS
 collectd.org v0.3.0/go.mod h1:A/8DzQBkF6abtvrT2j/AU/4tiBgJWYyh0y/oB/4MlWE=
 cosmossdk.io/errors v1.0.1 h1:bzu+Kcr0kS/1DuPBtUFdWjzLqyUuCiyHjyJB6srBV/0=
 cosmossdk.io/errors v1.0.1/go.mod h1:MeelVSZThMi4bEakzhhhE/CKqVv3nOJDA25bIqRDu/U=
-cosmossdk.io/math v1.3.0 h1:RC+jryuKeytIiictDslBP9i1fhkVm6ZDmZEoNP316zE=
-cosmossdk.io/math v1.3.0/go.mod h1:vnRTxewy+M7BtXBNFybkuhSH4WfedVAAnERHgVFhp3k=
+cosmossdk.io/math v1.4.0 h1:XbgExXFnXmF/CccPPEto40gOO7FpWu9yWNAZPN3nkNQ=
+cosmossdk.io/math v1.4.0/go.mod h1:O5PkD4apz2jZs4zqFdTr16e1dcaQCc5z6lkEnrrppuk=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 filippo.io/edwards25519 v1.0.0-rc.1 h1:m0VOOB23frXZvAOK44usCgLWvtsxIoMCTBGJZlpmGfU=
 filippo.io/edwards25519 v1.0.0-rc.1/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=