Update irssi

[tianon]

Changes:

• jessfraz/irssi@5b7fd3c: Update to Alpine 3.13 (Update to Alpine 3.13 jessfraz/irssi#26)
• jessfraz/irssi@810fde7: Add initial GitHub Actions CI (Add initial GitHub Actions CI jessfraz/irssi#25)

[github-actions]

Diff for 8ddeedd:

diff --git a/_bashbrew-cat b/_bashbrew-cat
index c7a4dcb..fb3f8ef 100644
--- a/_bashbrew-cat
+++ b/_bashbrew-cat
@@ -8,5 +8,5 @@ Directory: debian
 
 Tags: 1.2.2-alpine, 1.2-alpine, 1-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 4eb15e5f0583e58b326282ce0b1454aa5df1cf31
+GitCommit: 5b7fd3c26f7eb03c1f6e309972fe63521b72fd0e
 Directory: alpine
diff --git a/irssi_alpine/Dockerfile b/irssi_alpine/Dockerfile
index 91b1662..e43b132 100644
--- a/irssi_alpine/Dockerfile
+++ b/irssi_alpine/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.11
+FROM alpine:3.13
 
 RUN apk add --no-cache \
 		ca-certificates \