ci: bump bun 1.3.10/1.3.12 → 1.3.13 across CI and runtime

CI was on 1.3.10 while the Dockerfile runtime moved to 1.3.12 in v3.15.2,
so we were testing against an older runtime than we shipped. Align both
on 1.3.13 (latest stable). May also resolve the intermittent --coverage
instrumentation flake observed on 1.3.10 against http-client.ts.

.github/workflows/astro-build-test.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Setup Bun
         uses: oven-sh/setup-bun@v1
         with:
-          bun-version: '1.3.10'
+          bun-version: '1.3.13'
 
       - name: Check lockfile and install dependencies
         run: |

.github/workflows/e2e-tests.yml

@@ -40,7 +40,7 @@ env:
   FAKE_GITHUB_PORT: 4580
   GIT_SERVER_PORT: 4590
   APP_PORT: 4321
-  BUN_VERSION: "1.3.10"
+  BUN_VERSION: "1.3.13"
 
 jobs:
   e2e-tests:

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.4
 
-FROM oven/bun:1.3.12-debian AS base
+FROM oven/bun:1.3.13-debian AS base
 WORKDIR /app
 RUN apt-get update && apt-get -y upgrade && apt-get install -y --no-install-recommends \
   python3 make g++ gcc wget sqlite3 openssl ca-certificates \
@@ -49,7 +49,7 @@ RUN git clone --branch "v${GIT_LFS_VERSION}" --depth 1 https://github.com/git-lf
   && install -m 755 /tmp/git-lfs/bin/git-lfs /usr/local/bin/git-lfs
 
 # ----------------------------
-FROM oven/bun:1.3.12-debian AS runner
+FROM oven/bun:1.3.13-debian AS runner
 WORKDIR /app
 RUN apt-get update && apt-get -y upgrade && apt-get install -y --no-install-recommends \
   git wget sqlite3 openssl ca-certificates \