builds: reformat yaml

Use two spaces for indentation consistently.

Signed-off-by: Robin Jarry <robin@jarry.cc>

.builds/alpine-edge.yml

@@ -1,22 +1,23 @@
+---
 image: alpine/edge
 packages:
-- go
+  - go
-- scdoc
+  - scdoc
 sources:
-- https://git.sr.ht/~rjarry/aerc
+  - "https://git.sr.ht/~rjarry/aerc"
 environment:
   DESTDIR: ./out
 tasks:
-- checkfmt: |
+  - checkfmt: |
       cd aerc
       make checkfmt
-- build: |
+  - build: |
       cd aerc
       make
-- install: |
+  - install: |
       cd aerc
       make install
       make checkinstall
-- test: |
+  - test: |
       cd aerc
       go test ./...

.builds/debian-stable.yml

@@ -1,19 +1,20 @@
+---
 image: debian/stable
 packages:
-- golang
+  - golang
-- scdoc
+  - scdoc
 sources:
-- https://git.sr.ht/~rjarry/aerc
+  - "https://git.sr.ht/~rjarry/aerc"
 environment:
   DESTDIR: ./out
 tasks:
-- build: |
+  - build: |
       cd aerc
       make
-- install: |
+  - install: |
       cd aerc
       make install
       make checkinstall
-- test: |
+  - test: |
       cd aerc
       go test ./...

.builds/fedora-latest.yml

@@ -1,19 +1,20 @@
+---
 image: fedora/latest
 packages:
-- golang
+  - golang
-- scdoc
+  - scdoc
 sources:
-- https://git.sr.ht/~rjarry/aerc
+  - "https://git.sr.ht/~rjarry/aerc"
 environment:
   DESTDIR: ./out
 tasks:
-- build: |
+  - build: |
       cd aerc
       make
-- install: |
+  - install: |
       cd aerc
       make install
       make checkinstall
-- test: |
+  - test: |
       cd aerc
       go test ./...

.builds/openbsd.yml

@@ -4,7 +4,7 @@ packages:
   - go
   - scdoc
 sources:
-  - https://git.sr.ht/~rjarry/aerc
+  - "https://git.sr.ht/~rjarry/aerc"
 environment:
   DESTDIR: ./out
 tasks: