ci: fix testing with version 1.10.6

We need a version 1.10.6 in testing because it has no tuple-keydef and
tuple-merger support and we can test our own implementation of both
modules on that version. However Tarantool EE 1.10.6 is not available
for installation anymore, so we will use Tarantool CE 1.10.6 as a
replacement.

Luarocks in Tarantool 1.10.6 has a bug [1], so we need to apply a patch
[2] with fix for tarantool's luarocks file before using `tarantoolctl
rock`.

1. tarantool/tarantool#4704
2. tarantool/luarocks@eb555fa

Author: ligurio

.github/workflows/test_on_push.yaml

@@ -11,7 +11,9 @@ jobs:
       github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository
     strategy:
       matrix:
-        tarantool-version: ["1.10", "2.2", "2.3", "2.4", "2.5", "2.6", "2.7"]
+        # We need 1.10.6 here to check that module works with
+        # old Tarantool versions that don't have "tuple-keydef"/"tuple-merger" support.
+        tarantool-version: ["1.10.6", "1.10", "2.2", "2.3", "2.4", "2.5", "2.6", "2.7"]
         remove-merger: [false]
         include:
           - tarantool-version: "2.7"
@@ -23,11 +25,23 @@ jobs:
     steps:
       - uses: actions/checkout@master
 
-      - name: Setup Tarantool CE
+      - name: Setup Tarantool CE (~= 1.10.6)
         uses: tarantool/setup-tarantool@v1
+        if: matrix.tarantool-version != '1.10.6'
         with:
           tarantool-version: ${{ matrix.tarantool-version }}
 
+      - name: Setup Tarantool CE 1.10.6
+        if: matrix.tarantool-version == '1.10.6'
+        run: |
+          curl -L https://tarantool.io/release/1.10/installer.sh | bash
+          sudo apt install -y tarantool=1.10.6.0.g5372cd2fa-1 tarantool-dev=1.10.6.0.g5372cd2fa-1
+
+      - name: Fix luarocks in Tarantool CE 1.10.6
+        if: matrix.tarantool-version == '1.10.6'
+        run: |
+          sudo patch -p1 /usr/share/tarantool/luarocks/manif.lua luarocks.patch
+
       - name: Install requirements for community
         run: |
           tarantool --version
@@ -56,9 +70,7 @@ jobs:
     if: github.event_name == 'push'
     strategy:
       matrix:
-        # We need 1.10.6 here to check that module works with
-        # old Tarantool versions that don't have "tuple-keydef"/"tuple-merger" support.
-        bundle_version: [ "1.10.6-1-g52c786b", "1.10.10-0-gaea7ae77a-r399", "2.7.2-0-g4d8c06890-r399" ]
+        bundle_version: [ "1.10.11-0-gf0b0e7ecf-r422", "2.7.3-0-gdddf926c3-r422" ]
       fail-fast: false
     runs-on: [ ubuntu-latest ]
     steps:

luarocks.patch

@@ -0,0 +1,20 @@
+diff --git a/src/luarocks/manif.lua b/src/luarocks/manif.lua
+index 34ae02da5..79a427819 100644
+--- a/src/luarocks/manif.lua
++++ b/src/luarocks/manif.lua
+@@ -444,11 +444,10 @@ function manif.add_to_manifest(name, version, repo, deps_mode)
+
+    local manifest, err = manif_core.load_local_manifest(rocks_dir)
+    if not manifest then
+-      util.printerr("No existing manifest. Attempting to rebuild...")
+-      -- Manifest built by `manif.make_manifest` should already
+-      -- include information about given name and version,
+-      -- no need to update it.
+-      return manif.make_manifest(rocks_dir, deps_mode)
++      util.printerr("No existing manifest. Creating an empty one...")
++      -- Create an empty manifest.
++      manifest, err = { repository = {}, modules = {}, commands = {} }, nil
++      manif_core.cache_manifest(rocks_dir, nil, manifest)
+    end
+
+    local results = {[name] = {[version] = {{arch = "installed", repo = rocks_dir}}}}