chore(releasing): prepare v0.49.0 release (#23563)

* chore(releasing): Pinned VRL version to 0.26.0

* chore(releasing): Generated release CUE file

* chore(releasing): Updated website/cue/reference/administration/interfaces/kubectl.cue vector version to 0.49.0

* chore(releasing): Updated distribution/install.sh vector version to 0.49.0

* chore(releasing): Add 0.49.0 to versions.cue

* chore(releasing): Created release md file

* Apply suggestions from code review

* edit

* added description

* authors

* add upgrade guide wip

* upgrade guide changes

* Apply suggestions from code review

Co-authored-by: Pavlos Rontidis <[email protected]>

* improve breaking guide

---------

Co-authored-by: Thomas <[email protected]>

Author: pront

.github/actions/spelling/allow.txt

@@ -535,3 +535,10 @@ ZTE
 Zync
 envsubst
 jimmystewpot
+esensar
+jchap-pnnl
+jhbigler-pnnl
+jlambatl
+jorgehermo9
+notchairmk
+yjagdale