Compile the act ourselves.

.drone.yml

@@ -2,6 +2,14 @@ kind: pipeline
 name: default
 
 steps:
+- name: act
+  image: golang:1.19
+  commands:
+  - cd .. && git clone -b v0.2.48 https://github.com/nektos/act.git && cd act
+  - export ACT_VERSION=$(git describe --tags --dirty --always | sed -e 's/^v//')
+  - mkdir bin
+  - GOOS=linux GOARCH=amd64 go build -ldflags "-X main.version=$ACT_VERSION" -o bin/act main.go
+
 - name: build
   image: golang:1.19
   commands:

docker/Dockerfile.linux.amd64

@@ -3,7 +3,7 @@ FROM docker:dind
 ENV DOCKER_HOST=unix:///var/run/docker.sock
 
 RUN apk add --no-cache ca-certificates curl
-RUN curl -s https://raw.githubusercontent.com/nektos/act/master/install.sh | sh -s v0.2.48
+ADD ../act/bin/act /bin/
 
 ADD release/linux/amd64/plugin /bin/
 ENTRYPOINT ["/usr/local/bin/dockerd-entrypoint.sh", "/bin/plugin"]