release: changelog and version tag for v1.0.0-beta1 (#60)

Updates version tag and corresponding changelog.

Makefile

@@ -1,6 +1,6 @@
 SHELL := /bin/bash
 export GO111MODULE ?= on
-export VERSION ?= v1.0.0-bc14
+export VERSION ?= v1.0.0-beta1
 export ECE_VERSION ?= 2.4.3
 ECE_DEF_FILE ?= api/version/$(ECE_VERSION).md
 export GOBIN = $(shell pwd)/bin

notes/v1.0.0-beta1.md

@@ -0,0 +1,23 @@
+# Changelog
+
+## Notable changes
+
+### deps: Update swagger to v0.22.0 [#59](https://github.com/elastic/cloud-sdk-go/pull/59)
+
+Updates the swagger generator to the latest available version. This
+causes a few things to change for the auto-generated client and models,
+but none of them are breaking.
+
+An important change to mention is that any mismatches between the JSON
+response (i.e. statuscode) and the actual models which are casted into
+will result in a panic where before an error was returned. This can have
+unintended consequences for consuming clients.
+
+### Detailed changes
+<!-- AUTOGENERATED COMMIT LIST -->
+
+* 47fe6b9 build(deps): bump github.com/go-openapi/runtime from 0.19.10 to 0.19.11 (#57)
+* 985599c build(deps): bump github.com/go-openapi/spec from 0.19.5 to 0.19.6 (#56)
+* 2ff814b build: Add Go module cache for GitHub actions (#58)
+* 7c191f6 deps: Update swagger to v0.22.0 (#59)
+* 5469f6f release: changelog and version tag for v1.0.0-bc14 (#55)