Relax version requirements to allow patch version mismatch (#4080)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

apis/actions.github.com/v1alpha1/version.go

@@ -0,0 +1,72 @@
+package v1alpha1
+
+import "strings"
+
+func IsVersionAllowed(resourceVersion, buildVersion string) bool {
+	if buildVersion == "dev" || resourceVersion == buildVersion || strings.HasPrefix(buildVersion, "canary-") {
+		return true
+	}
+
+	rv, ok := parseSemver(resourceVersion)
+	if !ok {
+		return false
+	}
+	bv, ok := parseSemver(buildVersion)
+	if !ok {
+		return false
+	}
+	return rv.major == bv.major && rv.minor == bv.minor
+}
+
+type semver struct {
+	major string
+	minor string
+}
+
+func parseSemver(v string) (p semver, ok bool) {
+	if v == "" {
+		return
+	}
+	p.major, v, ok = parseInt(v)
+	if !ok {
+		return p, false
+	}
+	if v == "" {
+		p.minor = "0"
+		return p, true
+	}
+	if v[0] != '.' {
+		return p, false
+	}
+	p.minor, v, ok = parseInt(v[1:])
+	if !ok {
+		return p, false
+	}
+	if v == "" {
+		return p, true
+	}
+	if v[0] != '.' {
+		return p, false
+	}
+	if _, _, ok = parseInt(v[1:]); !ok {
+		return p, false
+	}
+	return p, true
+}
+
+func parseInt(v string) (t, rest string, ok bool) {
+	if v == "" {
+		return
+	}
+	if v[0] < '0' || '9' < v[0] {
+		return
+	}
+	i := 1
+	for i < len(v) && '0' <= v[i] && v[i] <= '9' {
+		i++
+	}
+	if v[0] == '0' && i != 1 {
+		return
+	}
+	return v[:i], v[i:], true
+}