treewide: switch to gomod and bump everything

This switches version resolution from fietsje to gomod and updates
all Go dependencies. It also bumps rules_go (required by gVisor) and
switches the Gazelle naming convention from go_default_xxx to the
standard Bazel convention of the default target having the package
name.

Since Kubernetes dropped upstream Bazel support and doesn't check in
all generated files I manually pregenerated the OpenAPI spec. This
should be fixed, but because of the already-huge scope of this CL
and the rebase complexity this is not in here.

Change-Id: Iec8ea613d06946882426c2f9fad5bda7e8aaf833
Reviewed-on: https://review.monogon.dev/c/monogon/+/639
Reviewed-by: Sergiusz Bazanski <serge@monogon.tech>
Reviewed-by: Leopold Schabel <leo@nexantic.com>
diff --git a/third_party/go/patches/delve-fix-cgo.patch b/third_party/go/patches/delve-fix-cgo.patch
new file mode 100644
index 0000000..d8a5254
--- /dev/null
+++ b/third_party/go/patches/delve-fix-cgo.patch
@@ -0,0 +1,11 @@
+diff -urN b/pkg/proc/internal/ebpf/BUILD.bazel c/pkg/proc/internal/ebpf/BUILD.bazel
+--- b/pkg/proc/internal/ebpf/BUILD.bazel  2022-01-14 23:29:02.948089761 +0000
++++ c/pkg/proc/internal/ebpf/BUILD.bazel  2022-01-14 23:13:52.964810803 +0000
+@@ -7,6 +7,7 @@
+         "helpers.go",
+         "helpers_disabled.go",
+         "trace_bpfel_x86.go",
++        "bpf/include/function_vals.bpf.h",
+     ],
+     cgo = True,
+     embedsrcs = select({
\ No newline at end of file