go.mod: update axisds

I forked `google/btree` into a new `btreemap` repository and changed
it to a better map-like API (changes are in many separate commits in
https://github.com/RaduBerinde/btreemap/commits/master/).

I updated `axisds` to use this instead of `btree` in
RaduBerinde/axisds#1.

This will allow crdb to use Pebble without having to upgrade `btree`.

Informs cockroachdb/cockroach#144488

Author: RaduBerinde

go.mod

@@ -3,7 +3,7 @@ module github.com/cockroachdb/pebble
 require (
 	github.com/DataDog/zstd v1.5.7
 	github.com/HdrHistogram/hdrhistogram-go v1.1.2
-	github.com/RaduBerinde/axisds v0.0.0-20250405232732-ecb85bedf677
+	github.com/RaduBerinde/axisds v0.0.0-20250419182453-5135a0650657
 	github.com/cespare/xxhash/v2 v2.2.0
 	github.com/cockroachdb/crlib v0.0.0-20241112164430-1264a2edc35b
 	github.com/cockroachdb/datadriven v1.0.3-0.20250407164829-2945557346d5
@@ -32,14 +32,14 @@ require (
 )
 
 require (
+	github.com/RaduBerinde/btreemap v0.0.0-20250419174037-3d62b7205d54 // indirect
 	github.com/aclements/go-moremath v0.0.0-20210112150236-f10218a38794 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/getsentry/sentry-go v0.27.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/google/btree v1.1.3 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/mattn/go-runewidth v0.0.9 // indirect

go.sum

@@ -10,8 +10,10 @@ github.com/GoogleCloudPlatform/cloudsql-proxy v0.0.0-20190129172621-c8b1d7a94ddf
 github.com/HdrHistogram/hdrhistogram-go v1.1.2 h1:5IcZpTvzydCQeHzK4Ef/D5rrSqwxob0t8PQPMybUNFM=
 github.com/HdrHistogram/hdrhistogram-go v1.1.2/go.mod h1:yDgFjdqOqDEKOvasDdhWNXYg9BVp4O+o5f6V/ehm6Oo=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/RaduBerinde/axisds v0.0.0-20250405232732-ecb85bedf677 h1:NofOMIO/Z3301wDc9gIM/M0/+YjvOYSvUe7+30bkxkA=
-github.com/RaduBerinde/axisds v0.0.0-20250405232732-ecb85bedf677/go.mod h1:YO26VdZg1RVVjEhjmeEJE/4bLnD2mowj5eDiZQSLtlE=
+github.com/RaduBerinde/axisds v0.0.0-20250419182453-5135a0650657 h1:8XBWWQD+vFF+JqOsm16t0Kab1a7YWV8+GISVEP8AuZ8=
+github.com/RaduBerinde/axisds v0.0.0-20250419182453-5135a0650657/go.mod h1:UHGJonU9z4YYGKJxSaC6/TNcLOBptpmM5m2Cksbnw0Y=
+github.com/RaduBerinde/btreemap v0.0.0-20250419174037-3d62b7205d54 h1:bsU8Tzxr/PNz75ayvCnxKZWEYdLMPDkUgticP4a4Bvk=
+github.com/RaduBerinde/btreemap v0.0.0-20250419174037-3d62b7205d54/go.mod h1:0tr7FllbE9gJkHq7CVeeDDFAFKQVy5RnCSSNBOvdqbc=
 github.com/aclements/go-gg v0.0.0-20170118225347-6dbb4e4fefb0/go.mod h1:55qNq4vcpkIuHowELi5C8e+1yUHtoLoOUR9QU5j7Tes=
 github.com/aclements/go-moremath v0.0.0-20210112150236-f10218a38794 h1:xlwdaKcTNVW4PtpQb8aKA4Pjy0CdJHEqvFbAnvR5m2g=
 github.com/aclements/go-moremath v0.0.0-20210112150236-f10218a38794/go.mod h1:7e+I0LQFUI9AXWxOfsQROs9xPhoJtbsyWcjJqDd4KPY=
@@ -106,8 +108,6 @@ github.com/gonum/internal v0.0.0-20181124074243-f884aa714029/go.mod h1:Pu4dmpkhS
 github.com/gonum/lapack v0.0.0-20181123203213-e4cdc5a0bff9/go.mod h1:XA3DeT6rxh2EAE789SSiSJNqxPaC0aE9J8NTOI0Jo/A=
 github.com/gonum/matrix v0.0.0-20181209220409-c518dec07be9/go.mod h1:0EXg4mc1CNP0HCqCz+K4ts155PXIlUywf0wqN+GfPZw=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/btree v1.1.3 h1:CVpQJjYgC4VbzxeGVHfvZrv1ctoYCAI8vbl07Fcxlyg=
-github.com/google/btree v1.1.3/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=