Release v1.20260909.1 · cloudflare/workerd

What's Changed

Cancel stateless tasks before request teardown to correctly close their spans by @apeacock1991 in #7137
[build] Update to V8 15.3 by @mar-cf in #7189
Update dependencies by @workers-devprod in #7268
Increase HTMLRewriter fiber stack size under ASan by @ketanhwr in #7278
bazelrc: try-import .local/bazelrc by @mikea in #7254
Add sockets streams suite by @jasnell in #7180
Add Workers cf.originRangeRequests types by @zaidoon1 in #7059
[o11y] Make BaseTracer::markUnused() virtual by @fhanau in #7212
Piping suite: absorb special-buffer pipe writes by @jasnell in #7181
[build] Fix clang 23 warnings by @fhanau in #7265
[tsan] build libc++ by @mikea in #7253
Publish Durable Object retry metrics only when a retry happens + add granular outcomes by @apeacock1991 in #7262

Full Changelog: v1.20260908.1...v1.20260909.1