Bump Traefik to v2.3.0-rc4

[jbdoumenjou]

Hello,

This PR updates Traefik to v2.3.0-rc4.

/cc @ldez @mmatur @SantoDE

Cheers

[ldez]

LGTM

[SantoDE]

Lgtm

[github-actions]

Diff for 996d759:

diff --git a/_bashbrew-cat b/_bashbrew-cat
index 59a9daa..1287a47 100644
--- a/_bashbrew-cat
+++ b/_bashbrew-cat
@@ -23,14 +23,14 @@ GitCommit: 3a918cb6253b82d01d5423266875617aeda0f1bc
 Directory: windows/1809
 Constraints: windowsservercore-1809
 
-Tags: v2.3.0-rc3, 2.3.0-rc3, v2.3, 2.3, picodon
+Tags: v2.3.0-rc4, 2.3.0-rc4, v2.3, 2.3, picodon
 Architectures: amd64, arm32v6, arm64v8
-GitCommit: 06e008a7576a80d08e21c8592bfdca03b9707e09
+GitCommit: 2012b77109a5d9c40c829b3b1471179c490a6472
 Directory: alpine
 
-Tags: v2.3.0-rc3-windowsservercore-1809, 2.3.0-rc3-windowsservercore-1809, v2.3-windowsservercore-1809, 2.3-windowsservercore-1809, picodon-windowsservercore-1809
+Tags: v2.3.0-rc4-windowsservercore-1809, 2.3.0-rc4-windowsservercore-1809, v2.3-windowsservercore-1809, 2.3-windowsservercore-1809, picodon-windowsservercore-1809
 Architectures: windows-amd64
-GitCommit: 06e008a7576a80d08e21c8592bfdca03b9707e09
+GitCommit: 2012b77109a5d9c40c829b3b1471179c490a6472
 Directory: windows/1809
 Constraints: windowsservercore-1809
 
diff --git a/_bashbrew-list b/_bashbrew-list
index 71f3b03..51af473 100644
--- a/_bashbrew-list
+++ b/_bashbrew-list
@@ -10,8 +10,8 @@ traefik:2.2.8
 traefik:2.2.8-windowsservercore-1809
 traefik:2.3
 traefik:2.3-windowsservercore-1809
-traefik:2.3.0-rc3
-traefik:2.3.0-rc3-windowsservercore-1809
+traefik:2.3.0-rc4
+traefik:2.3.0-rc4-windowsservercore-1809
 traefik:chevrotin
 traefik:chevrotin-windowsservercore-1809
 traefik:latest
@@ -32,6 +32,6 @@ traefik:v2.2.8
 traefik:v2.2.8-windowsservercore-1809
 traefik:v2.3
 traefik:v2.3-windowsservercore-1809
-traefik:v2.3.0-rc3
-traefik:v2.3.0-rc3-windowsservercore-1809
+traefik:v2.3.0-rc4
+traefik:v2.3.0-rc4-windowsservercore-1809
 traefik:windowsservercore-1809
diff --git a/traefik_picodon-windowsservercore-1809/Dockerfile b/traefik_picodon-windowsservercore-1809/Dockerfile
index d0d28b0..aaa6c9b 100644
--- a/traefik_picodon-windowsservercore-1809/Dockerfile
+++ b/traefik_picodon-windowsservercore-1809/Dockerfile
@@ -2,7 +2,7 @@ FROM mcr.microsoft.com/windows/servercore:1809
 SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
 
 RUN Invoke-WebRequest \
-        -Uri "https://github.com/containous/traefik/releases/download/v2.3.0-rc3/traefik_v2.3.0-rc3_windows_amd64.zip" \
+        -Uri "https://github.com/containous/traefik/releases/download/v2.3.0-rc4/traefik_v2.3.0-rc4_windows_amd64.zip" \
         -OutFile "/traefik.zip"; \
     Expand-Archive -Path "/traefik.zip" -DestinationPath "/" -Force; \
     Remove-Item "/traefik.zip" -Force
@@ -15,5 +15,5 @@ LABEL org.opencontainers.image.vendor="Containous" \
     org.opencontainers.image.url="https://traefik.io" \
     org.opencontainers.image.title="Traefik" \
     org.opencontainers.image.description="A modern reverse-proxy" \
-    org.opencontainers.image.version="v2.3.0-rc3" \
+    org.opencontainers.image.version="v2.3.0-rc4" \
     org.opencontainers.image.documentation="https://docs.traefik.io"
diff --git a/traefik_picodon/Dockerfile b/traefik_picodon/Dockerfile
index 2a01265..373fe22 100644
--- a/traefik_picodon/Dockerfile
+++ b/traefik_picodon/Dockerfile
@@ -8,7 +8,7 @@ RUN set -ex; \
 		x86_64) arch='amd64' ;; \
 		*) echo >&2 "error: unsupported architecture: $apkArch"; exit 1 ;; \
 	esac; \
-	wget --quiet -O /tmp/traefik.tar.gz "https://github.com/containous/traefik/releases/download/v2.3.0-rc3/traefik_v2.3.0-rc3_linux_$arch.tar.gz"; \
+	wget --quiet -O /tmp/traefik.tar.gz "https://github.com/containous/traefik/releases/download/v2.3.0-rc4/traefik_v2.3.0-rc4_linux_$arch.tar.gz"; \
 	tar xzvf /tmp/traefik.tar.gz -C /usr/local/bin traefik; \
 	rm -f /tmp/traefik.tar.gz; \
 	chmod +x /usr/local/bin/traefik
@@ -22,5 +22,5 @@ LABEL org.opencontainers.image.vendor="Containous" \
 	org.opencontainers.image.url="https://traefik.io" \
 	org.opencontainers.image.title="Traefik" \
 	org.opencontainers.image.description="A modern reverse-proxy" \
-	org.opencontainers.image.version="v2.3.0-rc3" \
+	org.opencontainers.image.version="v2.3.0-rc4" \
 	org.opencontainers.image.documentation="https://docs.traefik.io"